@@ChrisTardif_ can you elaborate on the "pain" part? I've been using it for almost a year and I find it quite simple, using the built-in bahtinov mask.
Hi Chuck, I'd recommend the Rokinon 135mm F/2 lens. Doesn't need a flattener or anything, can be attached to ZWO camera's with the use of an adapter too. It's cheaper than the scopes, you can shoot at F/2 but F/2.8 is slightly better, and it's also very light. It's one of the sharpest objectives available for astrophotography! A lot of people use it and I used it myself too! It's at least worth looking it up together with some results.
@@ChucksAstrophotography in my experience it does. However, there are units for it to use with an autofocus system as well. I would check this page out, but there is a a lot more info about it on the internet: deepskydad.com/laf
I agree with this too, and you can get an adaptor to your 1600 camera. And don't get a Raptor61. I hate my Raptor due to bad halo issues so converted it to a solar scope.
Hey Chuck! I’m putting in another plug for the William Optics RedCat 51. What a scope! Petzvel design quadruplet APO, native 250mm, flat field, no reducer. Super user friendly. Best of luck in your decision!!
Thanks for your input, HBA. But from what I've read, the Radian already has a built-in reducer - I don't know what will happen if another reducer is added to it.
Chuck don't forget you are the real gangster. Forget everything. Buy Takahashi FSQ-106EDX4 and ZWO ASI6200MM Pro and be the AstroGod. That 106mm aperture and 530mm focal length with full frame sensor will be the ultimate wide frame, even wider than those baby scopes. Not to mention the "tak"-sharp stars to the edge of the field with no vignettes at all won't force you to crop the image at all! Regards, Your Admirer.
I went with the Radian Raptor 61. It costs a little more but it also includes better mounting rings and I like the rotator over the one on the Sharpstar. I don't use the built-in filter holder. It's a PITA to use, so instead, I put a ZWO filter drawer on it. I'm not that cost adverse if it's well made so I recommend the Raptor unless you've got a cost constraint .
I have the the Redcat 51 (or Spacecat51) with a 250mm FOV and f4.9 so there is another option although the focuser or more like a what you use on a camera lens
The raptor is a rebrand of the sharpstar, the focal length is the same, the difference is the accessories (the rings, the rucksack etc). I got the sharpstar before the raptor was announced, and love it for widefield stuff, even with my old asi1600 :)
Hey Chuck the radian is just a rebrand of the sharpstar. Opt is bundling it with a focuser and handle but essentially it is the same scope. I did the same you are looking to do and bought a Williams Optics GT71 and a Redcat 51. I'm very pleased with the two scopes. Sharp as a tack.
I know someone using the Sharpstar, and is getting great results. I have the William Optics RedCat and can recommend that scope. I have no experience with the Raptor, but it does seem pricey. I have confidence in your ability to make the best decision.
@@ChucksAstrophotography There is a AF option available from Starlight Instruments. It looks a little dodgy, it drives the AF ring via a belt drive from an external motor. But I've seen it on a friends setup and he reports that it focuses reliably and stays on focus when the telescope moves/swivels.
Chuck, just find your scope in the drop down and it will pre-populate the aperture and focal length. Also, don’t forget that the Raptor is a native 275mm focal length. If you upgrade to a bigger sensor sized camera, I’d be more confident of a flat field to the edges with the Raptor vs the Sharpstar+reducer. That said, if you look at Trevors images with an APS-c sensor on the Raptor, the stars at the corners aren’t perfect. What you really want (and deserve) is an FSQ85 with the reducer. But obviously in a totally different price bracket. But you deserve it! Redcat is also worth a look. You also should move up one sensor size. I bet a full frame camera even on your Explore Scientific would give a pretty wide field and with great resolution.
I looked before, my RASA 8 wasn't in the list. The others probably were. Hmmm, I'm not sure if the Raptor is really native - the specs say a reducer is already built-in so it probably still has the same amount of glass as the Sharpstar+reducer. I'm not familiar with the FSQ85 - I'll look it up. I've seen so many positive comments about the RedCat, now I'm leaning in that direction. Thanks for all of the info.
@@ChucksAstrophotography Interesting. The RedCat is definitely a quality instrument. I had one - the only slight issue I had was that the temperature drops fast where I am (UK) and I couldn't come up with a really good automated focusing set up on it. Starlight have an option for the RedCat now but I have no experience with it.
Hi Chuck. I have the Sharpstar 61 and love it. I added the ZWO focuser. I normally pair it with the ZWO 533 but I'm experimenting with my ZWO 2400. The large pixel size is not ideal and astronomy tools says I'm way under sampled, but man, it's wide, wide, wide.
Chuck, have you looked at the AstroTech scopes at Astronomics? I picked up the AT72II ED and really like it. I also have it piggybacking on my RC8, switch it between guide and wide field imager. It’s not a triplet, but they have triplets, and I love the quality of the build.
If you can go wider, the redcat 51 at 250mm is an excellent scope! Really good optics for the price. Personally id go with the redcat 51 at 250mm than 275mm but the choice is up to you. :)
Hey Chuck! Ultimately you can't go wrong with either one in my opinion, as stated here many times - optically they are the same scope 👍 I'd have also suggested a redcat 51, but the helical focuser probably doesn't fit well with full automation setups (adapters are available however, but that's more cost) Good luck!! :)
@@ChucksAstrophotography you can now with deepskydad.com deepskydad.com/autofocuser/redcat#dovetail Features ASCOM supported INDI supported INDIGO supported TheSkyX Pro X2 Focuser Plugin custom step size speed control current control hand controller (optional) temperature probe (optional) settle buffer option compact design
I miss playing around with my MEADE etx-60. That was a fun scope, but the smallest scope you have blows mine away. Someday, maybe I’ll jump back into it, when I have more money.
@@ChucksAstrophotography Both are different colors of the same package. On astrobin and elsewhere, the redcat delivered. Bit more expensive than the 61edph II you picked, but nice round stars at the corners. The sharpstar had no petzval design and therefore is a but more versital. IMHO the Raptor is a bit hyped (and too expensive). In the end the results count so compare on Astrobin what mortals like us make of it (that's what I always do :) )
have to give another vote to the WO Redcat love using mine although it is a bit different than a standard telescope and functions more like a camera lens with its focus system Some have complained its hard to focus but I haven't had any issues I have used it with all the way from a Full Frame/Crop sensor mirrorless as well as ZWO 1600MC 294MC and 533MC have not had any issues with any of them. Its a quad petzval design so no extra field flattner to worry about I use mine with a 3D printed setup for using the ZWO EAF focuser and its very easy to use. and plus it is light and portable making it very easy for traveling with It my most used scope thus far for wide field stuff its a no brainer
Why Not Chuck, Treat Your self!!! It's whatever works for you at the end of the day. I honestly can't decide. As far as I can tell, they are both good scopes. I have a RedCat51 which is quite wide and I love it. I'v just checked on Astronomy Tools and it looks slightly wider ( if I put the details in correctly), but it has the helical focuser which may not suit your set up. Hope this helps and good look!!!
i know this is a question on an older post but I just caught what you said about doubling up and swapping Main and Guide duties. Have you tried and evaluated that?
you could consider the Esprit 80mm (f5, 400mm focal length) and Starizona Apex-S focal reducer/flattener (0.65x). A lot more money though than either of the other options. edit: the bonus is you'll get a slightly shorter focal length than your 2 options, and 80mm aperture vs 61mm (so 33% more aperture). The downside is it's more costly... 2nd edit: you could also consider the Asto-tech AT60ED - 60mm, f6 for a native 360mm focal length. I'm not 100% sure if the Starizona apex-s would work with it or not, but if it does, it'd be a 234mm focal length. About 800 USD for both of them. Of course, the AT60ED is a doublet, not a triplet. But, it does use FPL-53 glass Chuck and has a solid reputation for optical quality.
Hi Chuck! I've been hearing very good comments about Askar telescopes. Have a look at the Askar 200 mm f4. It's like a camera lens (you'll need adapters from ZWO). The raptor, redcat, and sharpstar are very good, and similar in specs. I would pick the best field corrected scope. The Askar has 6 lens elements, it seems very promising in that aspect. But the best route, is to look for sample images on astrobin to compare them all. You can also try another camera with a bigger sensor. Your RASA can fully illuminate an APSC size sensor, and that may give you a wider field. I don't really know how good is RASA field flatness thou. An APSC size sensor camera like the ZWO 2600 MC, will surely be more expensive than a wide field refractor telescope, so maybe you should stick to the refractor option! 😁
@@ChucksAstrophotography yes, the Raptor has some nice extras and the mounting bracket is better than the Sharpstar. I have the TS version of this scope and it’s awesome. Works brilliantly with the Primalucelab Sesto Senso focuser. You will love the field of view.
I also suggest to go with the Samyang/Rokinon 135mm f/2.0. It has became incredibly popular in astrophotography for its quality, price and wide field of view. It's also very fast. Second option is to get the ASI2600MC that is an APS-C and gives similar FoV than the one you were showing in the video. And the third option, why just don't do mosaics with the RASA? It's a monster, with its diameter you will beat these little telescopes in no time!
Ha, I "need" a new scope too!!!! RedCat51 or SpaceCat51 at 250mm. Only thing is it has a helical focuser as opposed to the standard focuser. but it is a great little scope!!
Like the film "What About Bob" - "I need I need I need" lol. I've seen people build electronic focusers for helical focuser, I would want to look into that.
Everyone has that RR or the RedCat--- Get the Borg 55FL F3.6 Astrograph with Feathertouch Focuser.. (200mm) ..I'd love to see one of those in action....resistance is futile
So I think that 400mm is pretty deep but with your case I think something like a redcat would fit you a lot better since it’s got a built in field flattener. I personally would get a rokinon 135mm f2. The only big problems that I can see with these is that they have helical focusers which could be a problem. The thing with the 135mm f2 is that it’s sharp at f2 and especially so with the 1600mm. If I wanted a scope I would get the sharpstar because of the price.
Think I would opt for the Sharpstar Chuck as the price difference is quite a lot. I have a WO Zenthstar 61 which I like a lot. it was my first scope 360mm native and 288mm with the flat61R reducer
I just got rid of a bunch of telescopes to buy 1. I think I sold 8 or 9 scopes and 3 mounts to buy a new setup. Not sure why I bother with the amount fo clouds and rain here
I think that 61EDPH and Raptor have exactly the same lens (same manufacturer). The reducer is already included in both scopes. They are both f/5.5 with a 0.8x reducer.
Hi Chuck this is Richard in Macomb, I have a Radian Raptor 61 and I'm going to be out of time for awhile soon would you like to borrow it to test with to see if you like it?
@@ChucksAstrophotography Ok I bought a used Raptor 61 on Cloudy Nights I'm working with it on a Celestron AVX mount it really might not need that much guiding it fast enough, M42 and M31 were the main targets for it so i have some time to prepare, might need a different CMOS camera ZWO ASI 183MC is recommended
You could get a new camera with larger sensor, like full format, 400mm of your RASA is already a very short fl, but it will be challenging for the stars on the edges of that wide field. :-)
@@ChucksAstrophotography not really because for planetary you don't need long exposures during many nights and you only take 3 or 4 pictures during the season of Jupiter and Saturn ,Mars is every two years so you can use your EQ6 r pro or your celestron cgx-l for few minutes
forgive me for stating the obvious, and I'm sure you've considered it already...but have you thought about getting a bigger sensor? Not sure what you already have but the 1600MM is pretty small considering the new crop of full frame 36x24mm sensors. You'd have to crunch some $ numbers and look to see if any of your scopes could take it without massive vignetting, but this is not a bad idea with some large potential benefits in future proofing once you get a large scope to mate it with (considering your location's seeing of course). I'm considering getting a 16803, or even a kepler 4040 (the sCMOS equivalent) for my next upgrade together with an FSQ 106 for wide field and probably a smaller version of a CDK, but the "minister of finance" has something else to say on the matter. This sensor of course is larger than you could get away with with your current equipment, and cost is astronomical (yes, I know..."a bun is the lowest form of wheat"), but the 'normal old', as daytime photographers call them, full frame sensors are now much cheaper than they once were. Just a thought...
William-Optics Redcat51. It's just superb at 250mm FL. Also, it's a Petzval which I think is superior to triplets for astrophotography? One question though: won't using the ZWO1600 on these scopes affect your image scale, or is that something you are not concerned with?
Smaller Apertures and Smaller Focal Length for Wide Angle means lots of choice. It honestly comes down to how much do you want to spend and what do you want to do....When I dipped below 400mm, I went to using my Astro-Mod DSLR....I do love to tinker however...I built my own Wide Field Image Train.... Thanks to Svbony got an adapter, to fit my ZWO onto my Canon EF-s Lenses...Light as a Feather and Using a Lens collar, it mounts to my Ioptron Skytracker Pro....Spent a fraction of the Money....Its produced some good images.... If I was going to Buy an Out of The Box Wide Field Rig.... I'd run the SharpStar 61APO.....Radian is Awesome, but 300 dollars more?. For what?...…I don't think I could do it unless I got the Radian On Sale....There are plenty of other choices, and you do not have to break the bank Chuck....Save some money for other goodies...LOL Clear Skies Chuck!
I have the SharpStar 76 EDPH and I would go with the 61 in a heartbeat. The Raptor looks cool and all, but I don't find value in the "extras" that are included. I don't need another backpack, the standard rings and dovetail plate works for me, etc.
Hey there! I reckon that you'll get more value out of a newer camera like zwo asi 2600 than a new scope ... I checked the FOV in astronomy tools and with the RASA 8 using 1600 you get 2.53 X 1.91, with the 2600 you get 3.36 X 2.25, while with the Sharpstar 61 with your 1600 you get 3.68 X 2.78 ... So yup the Sharpstar will be slightly better in terms of FOV but the image quality from the RASA will be quite another story and the speed of acquisition ... Yeah ... You get it ... Oh, to save a ton on your new camera you could try Risingcam from AliExpress version of the 2600 .. essentially the same camera with all the zwo drivers. But I guess that makes more sense to me in Europe than to you in US ... Much bigger price difference ...
@@ChucksAstrophotography You can with one of these . www.firstlightoptics.com/deep-sky-dad/deep-sky-dad-af3-autofocuser-kit-for-william-optics-redspace-cat.html
Hey Chuck! My friend, why not use the money you would have spent buying an almost identically performing Raptor/61 and buy a larger aperture, similar focal length Triplet Apo Sharpstar, like the Sharpstar 76EDPH F5.5 ( F4.4 with 0.8x reducer ). Have i missed something ?? Makes perfect sense to me ? if you were considering spending $1000+ on the Raptor my friend! Wes, Liverpool, UK.
When you talk about reciprocal guiding between both telescopes, you may have to consider not too different pixel sizes between them. Otherwise I guess some sh** may occur regarding the resulting image sharpness.
@@ChucksAstrophotography Another point: I have the same EQ6-R Pro (so good mount!), and I wonder if the additional payload would be compatible with its specifications.
@@ChucksAstrophotography Yes pairs well with most of ZWO's. Here is my veil cygnus loop with Rokinon 135mm f/2.0 ED UMC Telephoto and asi1600 in SHO www.astrobin.com/ygwhk1/ aka nwsorin
Chuck, look at the William Optics RedCat, 250mm focal length, f/4.9, excellent glass. And to get a little wider, the Borg55FL, 200mm focal length, but f/3.6, so much faster. More expensive, but hey... ...Stephen in Colorado
Can recommend the WO Spacecat if you need to go a little wider at 250mm. 👍🏻 Noddy
Thanks, I'll look up the specs on it.
Yup, I was going to recommend the RedCat. Good call
I have a Redcat. It's a pain to focus. I'd get something else.
@@ChrisTardif_ can you elaborate on the "pain" part? I've been using it for almost a year and I find it quite simple, using the built-in bahtinov mask.
There are several auto focuses on the market and as stated by another reply the focusing is fairly straight forward with the built in bahtinov mask.
Hi Chuck, I'd recommend the Rokinon 135mm F/2 lens. Doesn't need a flattener or anything, can be attached to ZWO camera's with the use of an adapter too. It's cheaper than the scopes, you can shoot at F/2 but F/2.8 is slightly better, and it's also very light. It's one of the sharpest objectives available for astrophotography! A lot of people use it and I used it myself too! It's at least worth looking it up together with some results.
+1 on the Rokinon 135mm. On sale on Amazon for under 400 dollars
Thanks - does it hold focus well. I always wonder if about a lens.
@@ChucksAstrophotography in my experience it does. However, there are units for it to use with an autofocus system as well. I would check this page out, but there is a a lot more info about it on the internet: deepskydad.com/laf
I agree with this too, and you can get an adaptor to your 1600 camera. And don't get a Raptor61. I hate my Raptor due to bad halo issues so converted it to a solar scope.
Hey Chuck! I’m putting in another plug for the William Optics RedCat 51. What a scope! Petzvel design quadruplet APO, native 250mm, flat field, no reducer. Super user friendly. Best of luck in your decision!!
That Radian sure seems like a beautiful piece of art . Cheers Chuck !
Askar FMA 180 is awesome, wide, corrected, and will be incredibly light for adding to your RASA setup!
Will be interesting to see what you go for Chuck, I'm sure you will get great results as always whatever you pick... Happy shopping Chuck. K
I'm considering buying the Sharpstar 61 too. It's a very good scope and the price is really good.
I'm hearing a lot of good things about the Radian scopes. Plus, you can always buy a reducer for it to widen out the FOV even more.
Thanks for your input, HBA. But from what I've read, the Radian already has a built-in reducer - I don't know what will happen if another reducer is added to it.
@@ChucksAstrophotography Optical abberations galore
Look forward to finding out what you choose finally!!
Me too, lol. Thanks UA!
go WIDEST available.. you already have one end covered, go to the extreme and over time, then dial in between!
Tempting!
Chuck don't forget you are the real gangster. Forget everything. Buy Takahashi FSQ-106EDX4 and ZWO ASI6200MM Pro and be the AstroGod. That 106mm aperture and 530mm focal length with full frame sensor will be the ultimate wide frame, even wider than those baby scopes. Not to mention the "tak"-sharp stars to the edge of the field with no vignettes at all won't force you to crop the image at all!
Regards,
Your Admirer.
Thanks for the info
Lalita! I'm the real gangster? I like that! 😎
@@ChucksAstrophotography Oh yes you are! Haha!
I went with the Radian Raptor 61. It costs a little more but it also includes better mounting rings and I like the rotator over the one on the Sharpstar. I don't use the built-in filter holder. It's a PITA to use, so instead, I put a ZWO filter drawer on it. I'm not that cost adverse if it's well made so I recommend the Raptor unless you've got a cost constraint
.
Good considerations, thanks for sharing your experience with the Raptor.
I have the the Redcat 51 (or Spacecat51) with a 250mm FOV and f4.9 so there is another option although the focuser or more like a what you use on a camera lens
The raptor is a rebrand of the sharpstar, the focal length is the same, the difference is the accessories (the rings, the rucksack etc). I got the sharpstar before the raptor was announced, and love it for widefield stuff, even with my old asi1600 :)
I never knew it was a rebrand. Good to know it pairs well with the 1600.
Hey Chuck the radian is just a rebrand of the sharpstar. Opt is bundling it with a focuser and handle but essentially it is the same scope. I did the same you are looking to do and bought a Williams Optics GT71 and a Redcat 51. I'm very pleased with the two scopes. Sharp as a tack.
I know someone using the Sharpstar, and is getting great results. I have the William Optics RedCat and can recommend that scope. I have no experience with the Raptor, but it does seem pricey. I have confidence in your ability to make the best decision.
A lot of people are recommending the RedCat, I may be swayed if I can find a way to control the focus electronically.
@@ChucksAstrophotography There is a AF option available from Starlight Instruments. It looks a little dodgy, it drives the AF ring via a belt drive from an external motor. But I've seen it on a friends setup and he reports that it focuses reliably and stays on focus when the telescope moves/swivels.
Thanks for keeping your shirt on! lol. I'll take your old scope! ;)
LOL, thanks for stopping by Shawn.
I love my Redcat 51, highly recommend it.
I have to get a RedCat, so many people seem to love it.
Thanks, I didn't know about that site. That will help me telescope and eyepiece shopping too :)
what you need is for zwo to send you a camera with a larger sensor, like the asi2600. that will give you the wider field you are looking for.
Chuck, just find your scope in the drop down and it will pre-populate the aperture and focal length. Also, don’t forget that the Raptor is a native 275mm focal length. If you upgrade to a bigger sensor sized camera, I’d be more confident of a flat field to the edges with the Raptor vs the Sharpstar+reducer. That said, if you look at Trevors images with an APS-c sensor on the Raptor, the stars at the corners aren’t perfect. What you really want (and deserve) is an FSQ85 with the reducer. But obviously in a totally different price bracket. But you deserve it! Redcat is also worth a look. You also should move up one sensor size. I bet a full frame camera even on your Explore Scientific would give a pretty wide field and with great resolution.
I looked before, my RASA 8 wasn't in the list. The others probably were. Hmmm, I'm not sure if the Raptor is really native - the specs say a reducer is already built-in so it probably still has the same amount of glass as the Sharpstar+reducer. I'm not familiar with the FSQ85 - I'll look it up. I've seen so many positive comments about the RedCat, now I'm leaning in that direction. Thanks for all of the info.
@@ChucksAstrophotography Interesting. The RedCat is definitely a quality instrument. I had one - the only slight issue I had was that the temperature drops fast where I am (UK) and I couldn't come up with a really good automated focusing set up on it. Starlight have an option for the RedCat now but I have no experience with it.
Hi Chuck. I have the Sharpstar 61 and love it. I added the ZWO focuser. I normally pair it with the ZWO 533 but I'm experimenting with my ZWO 2400. The large pixel size is not ideal and astronomy tools says I'm way under sampled, but man, it's wide, wide, wide.
Awesome, thanks for the info, njcck!
Chuck, have you looked at the AstroTech scopes at Astronomics? I picked up the AT72II ED and really like it. I also have it piggybacking on my RC8, switch it between guide and wide field imager.
It’s not a triplet, but they have triplets, and I love the quality of the build.
No, but I was hoping for comments like this to give me ideas. I will look into it, thanks!
Can’t wait to see, I’m sure you’re going to get amazing results as always:) have a great day Chuck!
Thanks Trevor!
I have (3) William Optics refractors. They are hands down the best bang for the buck.
One thing to consider is the felt lens cover havoc and to go with lenscoat cover for sure. I went with the Altair 60mm model and field flattener.
If you can go wider, the redcat 51 at 250mm is an excellent scope! Really good optics for the price. Personally id go with the redcat 51 at 250mm than 275mm but the choice is up to you. :)
Thanks Noah! It's unbelievable how many people are recommending the RedCat.
Hey Chuck! Ultimately you can't go wrong with either one in my opinion, as stated here many times - optically they are the same scope 👍
I'd have also suggested a redcat 51, but the helical focuser probably doesn't fit well with full automation setups (adapters are available however, but that's more cost)
Good luck!! :)
Thanks Luke. Yeah - I worry about the focus of the RedCat unless I could find away to adjust it within the house.
@@ChucksAstrophotography you can now with deepskydad.com deepskydad.com/autofocuser/redcat#dovetail
Features
ASCOM supported
INDI supported
INDIGO supported
TheSkyX Pro X2 Focuser Plugin
custom step size
speed control
current control
hand controller (optional)
temperature probe (optional)
settle buffer option
compact design
I miss playing around with my MEADE etx-60. That was a fun scope, but the smallest scope you have blows mine away. Someday, maybe I’ll jump back into it, when I have more money.
The William Optics RedCat/Spacecat 51 is very popular. It comes in at 250mm Focal Length at f/4.9 natively.
Thanks for the tip. I never knew ReCat was made by William Optics.
@@ChucksAstrophotography
Both are different colors of the same package. On astrobin and elsewhere, the redcat delivered. Bit more expensive than the 61edph II you picked, but nice round stars at the corners. The sharpstar had no petzval design and therefore is a but more versital. IMHO the Raptor is a bit hyped (and too expensive). In the end the results count so compare on Astrobin what mortals like us make of it (that's what I always do :) )
The Borg 55 has a 55mm aperture and 200mm focal length. would be the logical next step in increased field of view
The Radon Rapter was developed from the Sharpstar.
Yeah I think it's the Sharpstar with the reducer built in
They do look the same.
have to give another vote to the WO Redcat love using mine although it is a bit different than a standard telescope and functions more like a camera lens with its focus system
Some have complained its hard to focus but I haven't had any issues I have used it with all the way from a Full Frame/Crop sensor mirrorless as well as ZWO 1600MC 294MC and 533MC
have not had any issues with any of them. Its a quad petzval design so no extra field flattner to worry about I use mine with a 3D printed setup for using the ZWO EAF focuser and its very easy to use. and plus it is light and portable making it very easy for traveling with It my most used scope thus far for wide field stuff its a no brainer
I might be wrong but I understood both telescopes were basically the same with one packaged differently, with a few bells and whistles more.
The specs do look identical.
@@ChucksAstrophotography I'm pretty sure that it's an OEM scope, just re-badged.
Why Not Chuck, Treat Your self!!! It's whatever works for you at the end of the day. I honestly can't decide. As far as I can tell, they are both good scopes. I have a RedCat51 which is quite wide and I love it. I'v just checked on Astronomy Tools and it looks slightly wider ( if I put the details in correctly), but it has the helical focuser which may not suit your set up.
Hope this helps and good look!!!
WOOOOOOW!
Nice new Telescope(:
i know this is a question on an older post but I just caught what you said about doubling up and swapping Main and Guide duties. Have you tried and evaluated that?
you could consider the Esprit 80mm (f5, 400mm focal length) and Starizona Apex-S focal reducer/flattener (0.65x). A lot more money though than either of the other options. edit: the bonus is you'll get a slightly shorter focal length than your 2 options, and 80mm aperture vs 61mm (so 33% more aperture). The downside is it's more costly...
2nd edit: you could also consider the Asto-tech AT60ED - 60mm, f6 for a native 360mm focal length. I'm not 100% sure if the Starizona apex-s would work with it or not, but if it does, it'd be a 234mm focal length. About 800 USD for both of them. Of course, the AT60ED is a doublet, not a triplet. But, it does use FPL-53 glass Chuck and has a solid reputation for optical quality.
you need a RedCat....the world needs a RedCat
lol, thanks for the tip, Neil.
Either redcat or rapter, they both support full frame sensors and have what you need in the box. Redcat is 250mm
Hi Chuck! I've been hearing very good comments about Askar telescopes. Have a look at the Askar 200 mm f4. It's like a camera lens (you'll need adapters from ZWO). The raptor, redcat, and sharpstar are very good, and similar in specs.
I would pick the best field corrected scope. The Askar has 6 lens elements, it seems very promising in that aspect. But the best route, is to look for sample images on astrobin to compare them all.
You can also try another camera with a bigger sensor. Your RASA can fully illuminate an APSC size sensor, and that may give you a wider field. I don't really know how good is RASA field flatness thou. An APSC size sensor camera like the ZWO 2600 MC, will surely be more expensive than a wide field refractor telescope, so maybe you should stick to the refractor option! 😁
Thanks, I never even heard of it, but I will look it up!
Hey Chuck, The Raptor is essentially a rebrand of the 61EDPH II :-)
Yes - they are both so similar. But I need to dive into the extras that the Raptor has to be fair.
@@ChucksAstrophotography yes, the Raptor has some nice extras and the mounting bracket is better than the Sharpstar. I have the TS version of this scope and it’s awesome. Works brilliantly with the Primalucelab Sesto Senso focuser. You will love the field of view.
I also suggest to go with the Samyang/Rokinon 135mm f/2.0. It has became incredibly popular in astrophotography for its quality, price and wide field of view. It's also very fast. Second option is to get the ASI2600MC that is an APS-C and gives similar FoV than the one you were showing in the video. And the third option, why just don't do mosaics with the RASA? It's a monster, with its diameter you will beat these little telescopes in no time!
Ha, I "need" a new scope too!!!! RedCat51 or SpaceCat51 at 250mm. Only thing is it has a helical focuser as opposed to the standard focuser. but it is a great little scope!!
Like the film "What About Bob" - "I need I need I need" lol. I've seen people build electronic focusers for helical focuser, I would want to look into that.
Everyone has that RR or the RedCat--- Get the Borg 55FL F3.6 Astrograph with Feathertouch Focuser.. (200mm) ..I'd love to see one of those in action....resistance is futile
Big hole in the kitty that is ... Don't remember exactly the sum but was pretty staggering last I checked :)
So I think that 400mm is pretty deep but with your case I think something like a redcat would fit you a lot better since it’s got a built in field flattener. I personally would get a rokinon 135mm f2. The only big problems that I can see with these is that they have helical focusers which could be a problem. The thing with the 135mm f2 is that it’s sharp at f2 and especially so with the 1600mm. If I wanted a scope I would get the sharpstar because of the price.
Think I would opt for the Sharpstar Chuck as the price difference is quite a lot. I have a WO Zenthstar 61 which I like a lot. it was my first scope 360mm native and 288mm with the flat61R reducer
Thanks for your input, Astrobloke. Right - this is not a small difference on the price, it's huge. I will also look into the WO Zenthstar 61.
@@ChucksAstrophotography only point on that is the Z61 is a Doublet not that is a bad thing but if you wanted a triplet thought I would say.
I know 2 people locally who have the sharpstar 61 and they're both very happy with it
Good to know, and the price looks great!
I had the EDPH II but returned it do to chromatic aberation- all the bright stars had blue halos
Oh, this is the first negative thing I've heard about it.
Add the Meade 6000 Series 70mm Quadruplet APO Refractor. Incredible optics and razor sharp images.
Thanks for the tip, I'm surprised I don't see more people using Meade.
I just got rid of a bunch of telescopes to buy 1. I think I sold 8 or 9 scopes and 3 mounts to buy a new setup. Not sure why I bother with the amount fo clouds and rain here
Wow, you had a lot of scopes!
@@ChucksAstrophotography I think I sold about half of them to get an Orion hdx and a 12 inch newt
Chuck! I think you need an observatory first to house all these! lol
Exactly. The only reason I want the new scope to go on top of the RASA is that I am running out of space for another new setup. lol
I think that 61EDPH and Raptor have exactly the same lens (same manufacturer). The reducer is already included in both scopes. They are both f/5.5 with a 0.8x reducer.
Thanks, actually they are both f/4.5 with a reducer.
Redcat 51 or SpaceCat 250mm and no need for field flattener, I love using mine
Thanks for your input, Richard. I'm going to start researching these.
The Raptor sure has the looks, but the Sharpstar has the great price. If money were not a factor, I would go with the raptor
Money really isn't a factor, but that price difference is BIG and may be enough to sway me.
Go with the Samyang or Rokinon EOS 135mm lens and use the Astromechanics EOS adapter. Less expensive than your two options in your video, faster too!
I heard the TPO 180mm is really good too
Hi Chuck this is Richard in Macomb, I have a Radian Raptor 61 and I'm going to be out of time for awhile soon would you like to borrow it to test with to see if you like it?
I really appreciate that, Richard. But I probably just buy one when I'm ready for it - whichever scope it may be. But thanks for the offer.
@@ChucksAstrophotography Ok I bought a used Raptor 61 on Cloudy Nights I'm working with it on a Celestron AVX mount it really might not need that much guiding it fast enough, M42 and M31 were the main targets for it so i have some time to prepare, might need a different CMOS camera ZWO ASI 183MC is recommended
Do some serious PixInsight tutorials, and I will consider contributing to your next telescope endeavor..
lol, there are so many people doing PixInsight Tutorials and they are far more knowledgeable than I am. I'm not need for that.
You could get a new camera with larger sensor, like full format, 400mm of your RASA is already a very short fl, but it will be challenging for the stars on the edges of that wide field.
:-)
I worry about the weight of a full frame camera hanging on the front of my RASA.
@@ChucksAstrophotography Must not be a DSLR, your ASI 1600 weighs 410g, a QHY 600 for example, about 800g, should not be a problem for your RASA.
Rokinon 85mm with an ef adapter, or a Canon 135 f2. The 135 has been my go to with my 294mc pro. Frames rho ophiuchi really nicely.
Thanks for the info. I have lots more research to do after reading through the comments.
you already do a good job with deep sky go for a SC14 for planetary I told you long time ago 😁
That would be nice, but I would nee a mount upgrade for that one.
@@ChucksAstrophotography not really because for planetary you don't need long exposures during many nights and you only take 3 or 4 pictures during the season of Jupiter and Saturn ,Mars is every two years so you can use your EQ6 r pro or your celestron cgx-l for few minutes
Chuck, you may wish to investigate the APEX ED 0.65x reducer from Starizona. I use this with my Esprit 80 (FL 400) to get FL 260. Just a thought.
A reducer for the RASA? Hmmmm
Rokinon 135mm with the adapter to fit your asi1600mm pro and the ring to mount it with (I still use the 1600mm pro too)
I got a william optics Z61 with .8 reducer. fl 288 and f4.9. But, the raptor would look the best on the RASA in my opinion.
OPT is coming out with a 40mm APO at 180mm focal length that I've been looking at!
Interesting, I hadn't heard of this.
forgive me for stating the obvious, and I'm sure you've considered it already...but have you thought about getting a bigger sensor? Not sure what you already have but the 1600MM is pretty small considering the new crop of full frame 36x24mm sensors. You'd have to crunch some $ numbers and look to see if any of your scopes could take it without massive vignetting, but this is not a bad idea with some large potential benefits in future proofing once you get a large scope to mate it with (considering your location's seeing of course). I'm considering getting a 16803, or even a kepler 4040 (the sCMOS equivalent) for my next upgrade together with an FSQ 106 for wide field and probably a smaller version of a CDK, but the "minister of finance" has something else to say on the matter. This sensor of course is larger than you could get away with with your current equipment, and cost is astronomical (yes, I know..."a bun is the lowest form of wheat"), but the 'normal old', as daytime photographers call them, full frame sensors are now much cheaper than they once were. Just a thought...
Wow, nice equipment.👍🏼✨
Thanks Lori!
William-Optics Redcat51. It's just superb at 250mm FL. Also, it's a Petzval which I think is superior to triplets for astrophotography? One question though: won't using the ZWO1600 on these scopes affect your image scale, or is that something you are not concerned with?
That's a good point about the image-scale, I need to check that before I buy anything.
William Optics Redcat 51?
Smaller Apertures and Smaller Focal Length for Wide Angle means lots of choice. It honestly comes down to how much do you want to spend and what do you want to do....When I dipped below 400mm, I went to using my Astro-Mod DSLR....I do love to tinker however...I built my own Wide Field Image Train.... Thanks to Svbony got an adapter, to fit my ZWO onto my Canon EF-s Lenses...Light as a Feather and Using a Lens collar, it mounts to my Ioptron Skytracker Pro....Spent a fraction of the Money....Its produced some good images....
If I was going to Buy an Out of The Box Wide Field Rig.... I'd run the SharpStar 61APO.....Radian is Awesome, but 300 dollars more?. For what?...…I don't think I could do it unless I got the Radian On Sale....There are plenty of other choices, and you do not have to break the bank Chuck....Save some money for other goodies...LOL
Clear Skies Chuck!
Sharpener, is the raptor...this is what I was getting at with the whole, now one is promoted to be this *new* thing...
I love my SpaceCat 51.
I heard ZWO even offers a focuser for it. I like that.
@@ChucksAstrophotography Yes I have this but you have to order the fittings from Astrodad.
What's a good beginner telescope? My budget is up to $500. TIA.
Check out this video I made for beginners: ruclips.net/video/wN4SgPfp3og/видео.html
@@ChucksAstrophotography thanks!!
I have the SharpStar 76 EDPH and I would go with the 61 in a heartbeat. The Raptor looks cool and all, but I don't find value in the "extras" that are included. I don't need another backpack, the standard rings and dovetail plate works for me, etc.
Good to know, thanks Bruce. I might actually be leaning towards a RedCat now.
@@ChucksAstrophotography Good luck whichever direction you decide to go..
I’d recommend the Sharpstar 61. Another good one is the Redcat or Spacecat 51.
Everyone seems to love the RedCat.
Hey there! I reckon that you'll get more value out of a newer camera like zwo asi 2600 than a new scope ... I checked the FOV in astronomy tools and with the RASA 8 using 1600 you get 2.53 X 1.91, with the 2600 you get 3.36 X 2.25, while with the Sharpstar 61 with your 1600 you get 3.68 X 2.78 ... So yup the Sharpstar will be slightly better in terms of FOV but the image quality from the RASA will be quite another story and the speed of acquisition ... Yeah ... You get it ...
Oh, to save a ton on your new camera you could try Risingcam from AliExpress version of the 2600 .. essentially the same camera with all the zwo drivers. But I guess that makes more sense to me in Europe than to you in US ... Much bigger price difference ...
Isn't tilt in the corners of the image a potential issue with such a big chip?
I have the sharpstar 61, it works great
Good to know.
What about the Redcat at 250mm and f4.9 ? Never used it, but a lot of people seems to like it.
If I could control the focus from inside the house, I would love a Red Cat.
@@ChucksAstrophotography You can with one of these .
www.firstlightoptics.com/deep-sky-dad/deep-sky-dad-af3-autofocuser-kit-for-william-optics-redspace-cat.html
Radian Raptor Chuck. 275mm FL
Thanks Paul!
Love my RedCat51 works great! No flattener needed! 250mm!
Nice. I wonder if electronic focusers are available for it.
@@ChucksAstrophotography telescopes.net/starlight-instruments-si-rcef-electronic-control-of-helical-focuser-for-redcat.html
@@ChucksAstrophotography Yes. Check out Cody's setup here: ruclips.net/video/-vs7xeSTS3o/видео.html
Hey Chuck! My friend, why not use the money you would have spent buying an almost identically performing Raptor/61 and buy a larger aperture, similar focal length Triplet Apo Sharpstar, like the Sharpstar 76EDPH F5.5 ( F4.4 with 0.8x reducer ). Have i missed something ?? Makes perfect sense to me ? if you were considering spending $1000+ on the Raptor my friend! Wes, Liverpool, UK.
Luxury problems in astrophotography, we all have them, it never stops I guess ;-)
When you talk about reciprocal guiding between both telescopes, you may have to consider not too different pixel sizes between them. Otherwise I guess some sh** may occur regarding the resulting image sharpness.
@@ChucksAstrophotography Another point: I have the same EQ6-R Pro (so good mount!), and I wonder if the additional payload would be compatible with its specifications.
@@92mrkite I think even with the RASA and new scope, I would still be way under the payload capacity.
Chuck it's time connect one of your ZWO's to a 135mm lens @f/2.8. aka nwsorin @astrobin
I need to check that out, I was wondering if my ASI1600 would pair well with a lens.
@@ChucksAstrophotography Yes pairs well with most of ZWO's. Here is my veil cygnus loop with Rokinon 135mm f/2.0 ED UMC Telephoto and asi1600 in SHO www.astrobin.com/ygwhk1/ aka nwsorin
I'm looking at a Redcat myself.
Yeah, I'm going to start looking at pictures others have taken with it.
Chuck, look at the William Optics RedCat, 250mm focal length, f/4.9, excellent glass. And to get a little wider, the Borg55FL, 200mm focal length, but f/3.6, so much faster. More expensive, but hey... ...Stephen in Colorado
maybe availability will decide?
I don't mind waiting, I just want to make sure I buy the right one.
@@ChucksAstrophotography wished I had your patience. what about a focuser? motorizing?
Chuck, they are the same scope.
Yes, that's what it looks like.
Maybe the redcat/spacecat might be a good choice
everyone: REDCAT 51! REDCAAAT
lol
What about a WO red cat? 250mm
love from ISRO, INDIA
Look at the Askar scopes.
Just gt a 6200 as get more FOV and a great camera to use with other scopes! Sure you got a few thousand $ spare :D
lol, thanks for that tip.
Chuck, what about a Takahashi Epsilon 130? F/2.... Something
Not familiar with it, but I will look it up.
William Optics Redcat 51 is superb 250mm
Redcat 51 is the best!
I am seeing a lot of love for the RedCat in these comments.
Red cat with 1600mm or 533mc
Yeah, that sounds like a good combination.
Spacecat 😺✅
Thanks for the tip!
Need = Want ? 😁
LOL, Need looked better in the title.