Hi Tsula, this is such a valuable service you are providing to anyone considering buying a telescope in this size and range. No matter how many manuals you study or visits you make to a store, there is nothing better than someone who actually uses these telescopes telling all the pros and cons about them in such a clear and practical way. I am delighted with the choices I made earlier this year following your practical advice on Bader diagonals and finders opes and feel I have the ultimate set up now! Any advice on how to remove cloud cover would really be appreciated Ha Ha!!! Thanks for this wonderful service you provide and happy stargazing! 🤗✨🌙
Thanks for your input As you know, all of these things are all preference and even if two people are observing in the same skies, one person may like one better than the other, which is nothing wrong with that anyway Just a suggestion I know I do a lot of telescope comparisons on my channel. I bought the. Svbony 3 to 8mm zoom because as you saw getting powers to match, especially in the high-power views, sometimes really tough and hard to do so by having every focal length from 3 mm to 8 mm may solve this problem And the SV Boney zoom is actually decent quality and is not too expensive Keep up the good work and I’ll see you in the next video
@ I find it to be decent quality. It’s not those entry ones in Canada that’s about $200 for that zoom So it’s not one that’s $20-$40 or even more so it’s a decent amount so it’s a decent price. I think decent quality but get you closer. You can go virtually to every focal length from 3 to 8. You can get much closer when you do comparison in powers, just thought I’d let you know .
You have no idea how hard i searched for this information not even a week ago as i was trying to purchase my first telescope haha. Thanks so much for this, seems i arrived at the correct conclusion - the downfalls of a SCT essentially come down to only the higher price lol
I love your videos. I have a 10" Orion Dobsonian. Its a love hate relationship. The views are great, but it's so bulky and I absolutely hate having to find and keep objects in the field of view.
Thank you. You used to be able to buy a motor you could add to the Dobsonian to make it track the stars but the company went out of business during the pandemic. But sometimes I enjoy just wandering around with the Dob.
I looked into this recently and that's when I found out that Apertura and GSO are the same company. I will do some more research about their optics. One thing that is very important to me is the weight of any telescope. So, I would need to check that also.
I use a Telrad finder on my 10 inch Dob, but I like your set up! I always wondered what the differences would be between a SC and a Dob! Thank you for doing this video!
Thanks. The only slight problem with my set up is I have to walk around to the other side of the Dob to see through the red dot finder. A telrad and a right angle finder might work better. I never thought about that. Thanks.
I've had the opportunity to compare an F6 10" Newtonian (Cave Astrola) to a 12" Meade SC (non ACF), side by side at 7,000 feet on a night with good seeing. Both were on solid tracking mounts so the object was kept centered (so off-axis performance wasn't inadvertently compared with on-axis) and we didn't have unequal amounts of mount shake. We used the same design and make of eyepieces (even though they were different focal lengths to get about the same magnification). Using the same eyepiece design is crucial as there is a HUGE difference in optical performance between different eyepiece designs. The Newtonian was better on planets, like your experience on Saturn, - there was no doubt that the Newt had better contrast and was sharper. I chalked that up to the SC having a larger percentage obstruction and a glass corrector plate that introduces more reflections and cuts transmission. The two were roughly equivalent on other deep sky targets. We used a diagonal on the SC which also slightly cuts light transmission.
Interesting. You must have had quite a beefy mount to hold a 10" Newtonian. I feel that the difference between the eyepieces contributed to some differences and also in retrospect I believe maybe the SCT had not completely cooled down the first night because it was in the observatory and it had been quite warm earlier that day.
Nice comparison of the two, it's really horses for courses as they say with the choice,depends on what your looking at, with the Meade you can also get F6.3 with adding a Celestron Focal reducer, unlike the Meade one this one can be used optically and photographically..clear skies, keep.safe
Thanks. I bought a reducer for the Meade made by Antares and it says it works photographically and visually. I only used it once. I should get it out again and try it on a big object like NGC 7000 and see how it does.
@@tsulasbigadventures I wonder if it's possible to take 3D images of the moon using your equipment. (The idea came to me just a little while ago as, in pursuit of my own hobby, I was flipping through antique stereographs at the Library of Congress.) I don't see anything on RUclips or the rest of the internet about this, but if you could take two separate images of a prominent feature, preferably distant from the equator, and several hours apart, you might get the 3D effect, which you could then present to your viewers as GIFs using the "wiggle 3D" method. As seen on RUclips, wiggle 3D GIFs are easy to create, in a matter of minutes, in Photoshop.
@@waltergold3457 I've never tried it before. The moon changes a lot in two hours. So, depending on the feature being photographed it may no longer look dramatic two hours later. I'll look into it.
I know I already told you but I plan on buying a used C8 from Celestron around Christmas time and putting it on my AVX, but I got to looking and I think i’m going to go for the EdgeHD version of the C8, but i’ll have to sell my only wide field telescope, my EvoStar 72ED to get it. What do you think about this choice? I do have a few concerns about the EdgeHD and SCT’s in general. 1. Am I going to have any vignetting problems? I’m going to be using my Nikon D5300 but later upgrading to a dedicated astronomy camera. 2. Is focus going to drift when I slew and with temperature change? 3. Is dew going to be a big problem? Living here in Michigan, it can get pretty dewy and frosty. And 4. Is tracking and guiding going to be a problem with my AVX and could I upgrade to an OAG to solve that?
Hi Brody: Those are excellent questions. I didn't know you were thinking about a Celestron 8". That is interesting because I have also been thinking about it. My Meade 8" SCT was ruined in a car accident and now that telescope is no longer available or I would have bought the exact LX85 8" since it was such a great telescope, but now I have to either get the C8 or the Edge just like you are thinking. They seem to be the only choices in an 8" SCT. I decided that the Edge isn't worth the extra cost because you are paying a lot more just to not have a little coma at the edge. For me I decided I can live with a little coma just like on the Dob. In answer to your other questions: 1. You would only have vignetting if you put the camera directly into the diagonal. If you attach the camera with the Celestron adapter or focal reducer you won't have that issue. So, get the adapter if you get either the Edge or the C8. 2. Focus will shift when you move to another object. I tested a NexStar 8" last year on a borrowed telescope and it exhibited a little bit of shift. Not too bad though. 3. Dew is a big problem for SCTs! You must get a dew shield AND when it's really dewey also add dew straps around the end of the tube. Good news is that they are cheap. 4. Tracking will not be a problem on an AVX mount. It can easily handle the weight of a C8 or Edge 8". I used to put my LX85 8" on my Sirius EQ-G mount which has the same weight capacity as the AVX and it worked just fine tracking. I never used an OAG on it. So, I can't say about that but the AVX should be able to easily handle an 8" SCT no problem.
@tsulasbigadventures Thanks Tsula! I’m mostly going to use that scope if I get it for Astrophotography and a little bit of visual on the side, so thats why I was thinking the EdgeHD version. Otherwise, if I was only doing visual, I would definitely just get the C8. For visual use, I want that scope for its big aperture and ability to see a lot of deep sky objects as well as deliver nice views of the planets with the same scope. I’m assuming you saw a lot with your 8”LX85 correct? For Photography use, I want an Edge for the coma free edges and its long focal length for “galaxy season”, as well as small planetary nebulae and webcam lunar planetary. I would also like to get a Hyperstar unit to convert it from f/10, to f/2 for the wider view, though I can’t use it for visual with Hyperstar.
Another nice video. To be fair I would be really upset if I bought a telescope that was more than double the price for just the scope and it wasn't better. But honestly I think my money is going to go towards a 16" truss tube dob now that I have a few telescopes and really want to go deep and get some serious observing in. They 8" isn't going anywhere though!
Thank you. Yes, that is a big price difference between the two telescopes. I would love to own a 16" truss tube but I know it would be too heavy for me. Someone keeps telling me to get the lightweight Obsession and I seriously considered the 18" but it is a beast and I wonder how often I would actually take it out. You'll have to let me know how you like your 16" Dob and how often you use it. Will you be taking it to a dark sky site?
@tsulasbigadventures it'll be a few years before I can afford to actually buy one, but the thought is that since it comes apart into so many pieces each part should be reasonably easy to handle. I don't know if I will still be living where I am now, but it's pretty dark in my own back yard, enough to pretty easily lick out M31 naked eye so if I'm still here I plan to use it in my own yard. That said, there is an astronomy program I like to attend about an hour from me and I 100% plan on taking it there at least occasionally
In my 12" dob i've found that i required a coma corrector, it made a huge difference with my TV eyepieces mostly because of the F4.9 speed of the scope.
I bought a coma corrector about a year ago but I never got around to using it yet but I think I will as soon as it clears up and see how it does with the wide angle eyepieces.
I would say so. For most objects I looked at except Saturn which looked far better in the Dob, each object looked about the same in each telescope in terms of brightness. Many objects were sharper in the SCT than the Dob. Where I really noticed a big difference was at the edges of the field of view where the coma was very obvious on the Dob.
@@tsulasbigadventures that's interesting, thanks. I asked because in SCT not only a central obstruction is bigger, but there are 2 more optical elements - a corrector plate, and a diagonal. Actually, my new 6" Celestron SCT in noticeably brighter than my old 6" newtonian, so mirrors do age, and it's another thing to consider when you're buying a used scope.
@@A0111. That is true. I read an extensive review of the original C8 the old orange tube versus the new C8 black tube. The new C8 has much better coatings for reflectivity from what I read and is just a better telescope according to this one review.
A year ago I told my wife that it was time for me to have the telescope I always wanted as a kid. So we purchased a Celestron 10in Dobsonian. I love that thing, but now I think it's time for something with a "go to" mount that I can hook a camera up to.
I have toyed with getting a Skywatcher 180 Mak but it's hard for me to justify getting another telescope especially when their main function is planets. We'll see. Maybe I can find a used one in good shape.
Thanks for this excellent comparison! I’ve been considering a new telescope to replace my Tasco 60 mm EQ refractor. I think I’d prefer a GoTo tracking mount. Recently I watched a video of a SkyWatcher SynScan FlexTube dobsonian … I found the motor drives to be rather noisy which for me would detract from the visual observing experience but I’m still considering it. I imagine your EQ6 mount is quieter than the SynScan drive. Strain wave mounts seem all the rage for astro photography but I’m wondering if they can be used for visual astronomy? Thanks. 🔭✨🌝
Thank you. The EQ6 mount is very quiet but that mount is very heavy. I bought an iOptron HAZ31 Strain wave Alt Az mount just for visual observing. It is so nice to have such a light weight set up and it is whisper quiet when it slews. It is not as accurate locating objects as my Equatorial mounts but it's close enough for visual. If you can afford one I highly recommend the iOptron HAZ31 on a carbon fiber tripod. They are expensive is the only drawback but definitely works great as a visual astronomy mount.
Hi Tsula. It looks like you replaced your 8” SCT that was damaged. I was wondering if you ever considered the Celestron 9.25 with internal WiFi, internal battery and ability to ditch the hand controller and use the much better sky safari software to slew to objects. Thanks.
I am still deciding what to do since the Meade LX85 8" is no longer available. I was thinking about the Celestron 9.25" it weighs 20 pounds and I am at an age where weight is a huge factor. I'm still vacillating about it.
No. It's a Maksutov-Cassegrain Telescope. They are similar but Maksutov-Cassegrains use a thick meniscus corrector plate instead of a thin one used on Schmidt-Cassegrains. See here for the differences: ruclips.net/video/zzcAurE3Wc8/видео.html
That is true and that's why the Meade telescope was so expensive. Before Meade ceased operations they were making all of their SCTs with the ACF system. So, all of the 10" SCTs were aplanatic.
It's maddening that they just disappeared without a trace. Meade still has their website up and working but when you click on anything it goes to a retailer and they are just selling down their inventory. What a shame.
I think so. I bought one of the last Meade LX90 8" made, I think. It works great and I'm very happy with it. If it ever fails I will just take it off the dual fork and get a mount for it. The optics are great. There are places that will work on Meade telescopes.
@tsulasbigadventures Tsula thank you so much for your response. I really enjoy your channel you and Ed ting and the backyard astronomy. Like you life happens during are working years but now that I'm retired I like to get a telescope and start exploring the Heavens so keep up the awesome videos looking forward to seeing many more.
Hi Tsula, this is such a valuable service you are providing to anyone considering buying a telescope in this size and range. No matter how many manuals you study or visits you make to a store, there is nothing better than someone who actually uses these telescopes telling all the pros and cons about them in such a clear and practical way. I am delighted with the choices I made earlier this year following your practical advice on Bader diagonals and finders opes and feel I have the ultimate set up now! Any advice on how to remove cloud cover would really be appreciated Ha Ha!!!
Thanks for this wonderful service you provide and happy stargazing! 🤗✨🌙
Hi Lynn: Thank you so much. That is a very nice compliment. I will ask Zeus to remove any clouds that persist above your observing area. Take care.
@ I’ll await results!!!
Fascinating deep dive into the specs & costs of your gear. Stairway to the Stars. Workshop of the Telescopes.
Thanks for your input
As you know, all of these things are all preference and even if two people are observing in the same skies, one person may like one better than the other, which is nothing wrong with that anyway
Just a suggestion I know I do a lot of telescope comparisons on my channel. I bought the. Svbony 3 to 8mm zoom because as you saw getting powers to match, especially in the high-power views, sometimes really tough and hard to do so by having every focal length from 3 mm to 8 mm may solve this problem
And the SV Boney zoom is actually decent quality and is not too expensive
Keep up the good work and I’ll see you in the next video
Thanks Joe. I'll take a look at that SV Bony zoom eyepiece. I have never owned one because I always heard that they were not very good. Take care.
@ I find it to be decent quality. It’s not those entry ones in Canada that’s about $200 for that zoom
So it’s not one that’s $20-$40 or even more so it’s a decent amount so it’s a decent price. I think decent quality but get you closer. You can go virtually to every focal length from 3 to 8. You can get much closer when you do comparison in powers, just thought I’d let you know .
This was a very informative video, Tsula. Thank you.
Keep up the great work.
Thank you, Kevin.
You have no idea how hard i searched for this information not even a week ago as i was trying to purchase my first telescope haha. Thanks so much for this, seems i arrived at the correct conclusion - the downfalls of a SCT essentially come down to only the higher price lol
Well, at least you came to a good decision. Thanks for watching.
Great comparison. I've wondered the same question many times and look at the forums. This is the most real life response I've seen.
Thank you!
Thank you, very interesting show and fun.
@@kevinmccarthy8746 Thank you!
I love your videos. I have a 10" Orion Dobsonian. Its a love hate relationship. The views are great, but it's so bulky and I absolutely hate having to find and keep objects in the field of view.
Thank you. You used to be able to buy a motor you could add to the Dobsonian to make it track the stars but the company went out of business during the pandemic. But sometimes I enjoy just wandering around with the Dob.
You should try a GSO, or one of the rebranded ones like TS-Optics , Stellalyra or Apertura, dobsonians. Many say that GSO make the best optics.
I looked into this recently and that's when I found out that Apertura and GSO are the same company. I will do some more research about their optics. One thing that is very important to me is the weight of any telescope. So, I would need to check that also.
Thanks for the comparison Tsula. Cheers.
Great video. I always learn something when watching your videos
Thanks, Mark.
I use a Telrad finder on my 10 inch Dob, but I like your set up! I always wondered what the differences would be between a SC and a Dob! Thank you for doing this video!
Thanks. The only slight problem with my set up is I have to walk around to the other side of the Dob to see through the red dot finder. A telrad and a right angle finder might work better. I never thought about that. Thanks.
I've had the opportunity to compare an F6 10" Newtonian (Cave Astrola) to a 12" Meade SC (non ACF), side by side at 7,000 feet on a night with good seeing. Both were on solid tracking mounts so the object was kept centered (so off-axis performance wasn't inadvertently compared with on-axis) and we didn't have unequal amounts of mount shake. We used the same design and make of eyepieces (even though they were different focal lengths to get about the same magnification). Using the same eyepiece design is crucial as there is a HUGE difference in optical performance between different eyepiece designs. The Newtonian was better on planets, like your experience on Saturn, - there was no doubt that the Newt had better contrast and was sharper. I chalked that up to the SC having a larger percentage obstruction and a glass corrector plate that introduces more reflections and cuts transmission. The two were roughly equivalent on other deep sky targets. We used a diagonal on the SC which also slightly cuts light transmission.
Interesting. You must have had quite a beefy mount to hold a 10" Newtonian. I feel that the difference between the eyepieces contributed to some differences and also in retrospect I believe maybe the SCT had not completely cooled down the first night because it was in the observatory and it had been quite warm earlier that day.
Nice comparison of the two, it's really horses for courses as they say with the choice,depends on what your looking at, with the Meade you can also get F6.3 with adding a Celestron Focal reducer, unlike the Meade one this one can be used optically and photographically..clear skies, keep.safe
Thanks. I bought a reducer for the Meade made by Antares and it says it works photographically and visually. I only used it once. I should get it out again and try it on a big object like NGC 7000 and see how it does.
Very interesting video
Thank you!
Nice astronomical drawings - I enlarged the one of the spiral galaxy (12:30) and could clearly see what you marked of its structure.
Thanks, Walter.
@@tsulasbigadventures I wonder if it's possible to take 3D images of the moon using your equipment. (The idea came to me just a little while ago as, in pursuit of my own hobby, I was flipping through antique stereographs at the Library of Congress.) I don't see anything on RUclips or the rest of the internet about this, but if you could take two separate images of a prominent feature, preferably distant from the equator, and several hours apart, you might get the 3D effect, which you could then present to your viewers as GIFs using the "wiggle 3D" method. As seen on RUclips, wiggle 3D GIFs are easy to create, in a matter of minutes, in Photoshop.
@@waltergold3457 I've never tried it before. The moon changes a lot in two hours. So, depending on the feature being photographed it may no longer look dramatic two hours later. I'll look into it.
Hi Tsula. Thanks for your video. What eyepieces do you frequently use in your 10" dob?
I have an Explore Scientific 24mm, a GSO 15mm, and a Stellarvue 8mm that get the most use on the Dobsonian.
I know I already told you but I plan on buying a used C8 from Celestron around Christmas time and putting it on my AVX, but I got to looking and I think i’m going to go for the EdgeHD version of the C8, but i’ll have to sell my only wide field telescope, my EvoStar 72ED to get it. What do you think about this choice?
I do have a few concerns about the EdgeHD and SCT’s in general.
1. Am I going to have any vignetting problems? I’m going to be using my Nikon D5300 but later upgrading to a dedicated astronomy camera.
2. Is focus going to drift when I slew and with temperature change?
3. Is dew going to be a big problem? Living here in Michigan, it can get pretty dewy and frosty.
And 4. Is tracking and guiding going to be a problem with my AVX and could I upgrade to an OAG to solve that?
Hi Brody: Those are excellent questions. I didn't know you were thinking about a Celestron 8". That is interesting because I have also been thinking about it. My Meade 8" SCT was ruined in a car accident and now that telescope is no longer available or I would have bought the exact LX85 8" since it was such a great telescope, but now I have to either get the C8 or the Edge just like you are thinking. They seem to be the only choices in an 8" SCT. I decided that the Edge isn't worth the extra cost because you are paying a lot more just to not have a little coma at the edge. For me I decided I can live with a little coma just like on the Dob. In answer to your other questions:
1. You would only have vignetting if you put the camera directly into the diagonal. If you attach the camera with the Celestron adapter or focal reducer you won't have that issue. So, get the adapter if you get either the Edge or the C8.
2. Focus will shift when you move to another object. I tested a NexStar 8" last year on a borrowed telescope and it exhibited a little bit of shift. Not too bad though.
3. Dew is a big problem for SCTs! You must get a dew shield AND when it's really dewey also add dew straps around the end of the tube. Good news is that they are cheap.
4. Tracking will not be a problem on an AVX mount. It can easily handle the weight of a C8 or Edge 8". I used to put my LX85 8" on my Sirius EQ-G mount which has the same weight capacity as the AVX and it worked just fine tracking. I never used an OAG on it. So, I can't say about that but the AVX should be able to easily handle an 8" SCT no problem.
@tsulasbigadventures Thanks Tsula! I’m mostly going to use that scope if I get it for Astrophotography and a little bit of visual on the side, so thats why I was thinking the EdgeHD version. Otherwise, if I was only doing visual, I would definitely just get the C8.
For visual use, I want that scope for its big aperture and ability to see a lot of deep sky objects as well as deliver nice views of the planets with the same scope.
I’m assuming you saw a lot with your 8”LX85 correct?
For Photography use, I want an Edge for the coma free edges and its long focal length for “galaxy season”, as well as small planetary nebulae and webcam lunar planetary. I would also like to get a Hyperstar unit to convert it from f/10, to f/2 for the wider view, though I can’t use it for visual with Hyperstar.
@@brodymk45 OK. Then you should definitely get the Edge version. I saw a lot with my LX85.
Another nice video. To be fair I would be really upset if I bought a telescope that was more than double the price for just the scope and it wasn't better. But honestly I think my money is going to go towards a 16" truss tube dob now that I have a few telescopes and really want to go deep and get some serious observing in. They 8" isn't going anywhere though!
Thank you. Yes, that is a big price difference between the two telescopes. I would love to own a 16" truss tube but I know it would be too heavy for me. Someone keeps telling me to get the lightweight Obsession and I seriously considered the 18" but it is a beast and I wonder how often I would actually take it out. You'll have to let me know how you like your 16" Dob and how often you use it. Will you be taking it to a dark sky site?
@tsulasbigadventures it'll be a few years before I can afford to actually buy one, but the thought is that since it comes apart into so many pieces each part should be reasonably easy to handle. I don't know if I will still be living where I am now, but it's pretty dark in my own back yard, enough to pretty easily lick out M31 naked eye so if I'm still here I plan to use it in my own yard. That said, there is an astronomy program I like to attend about an hour from me and I 100% plan on taking it there at least occasionally
In my 12" dob i've found that i required a coma corrector, it made a huge difference with my TV eyepieces mostly because of the F4.9 speed of the scope.
I bought a coma corrector about a year ago but I never got around to using it yet but I think I will as soon as it clears up and see how it does with the wide angle eyepieces.
Was brightness the same under the same magnification?
I would say so. For most objects I looked at except Saturn which looked far better in the Dob, each object looked about the same in each telescope in terms of brightness. Many objects were sharper in the SCT than the Dob. Where I really noticed a big difference was at the edges of the field of view where the coma was very obvious on the Dob.
@@tsulasbigadventures that's interesting, thanks. I asked because in SCT not only a central obstruction is bigger, but there are 2 more optical elements - a corrector plate, and a diagonal. Actually, my new 6" Celestron SCT in noticeably brighter than my old 6" newtonian, so mirrors do age, and it's another thing to consider when you're buying a used scope.
@@A0111. That is true. I read an extensive review of the original C8 the old orange tube versus the new C8 black tube. The new C8 has much better coatings for reflectivity from what I read and is just a better telescope according to this one review.
A year ago I told my wife that it was time for me to have the telescope I always wanted as a kid. So we purchased a Celestron 10in Dobsonian. I love that thing, but now I think it's time for something with a "go to" mount that I can hook a camera up to.
Nothing wrong with owning both if you can afford it.
Hi Tsula, would love to see these up against a Maksutov 180 on the planets
I have toyed with getting a Skywatcher 180 Mak but it's hard for me to justify getting another telescope especially when their main function is planets. We'll see. Maybe I can find a used one in good shape.
Thanks for this excellent comparison! I’ve been considering a new telescope to replace my Tasco 60 mm EQ refractor. I think I’d prefer a GoTo tracking mount. Recently I watched a video of a SkyWatcher SynScan FlexTube dobsonian … I found the motor drives to be rather noisy which for me would detract from the visual observing experience but I’m still considering it. I imagine your EQ6 mount is quieter than the SynScan drive. Strain wave mounts seem all the rage for astro photography but I’m wondering if they can be used for visual astronomy? Thanks. 🔭✨🌝
Thank you. The EQ6 mount is very quiet but that mount is very heavy. I bought an iOptron HAZ31 Strain wave Alt Az mount just for visual observing. It is so nice to have such a light weight set up and it is whisper quiet when it slews. It is not as accurate locating objects as my Equatorial mounts but it's close enough for visual. If you can afford one I highly recommend the iOptron HAZ31 on a carbon fiber tripod. They are expensive is the only drawback but definitely works great as a visual astronomy mount.
@ Thanks very much!
Hi Tsula. It looks like you replaced your 8” SCT that was damaged. I was wondering if you ever considered the Celestron 9.25 with internal WiFi, internal battery and ability to ditch the hand controller and use the much better sky safari software to slew to objects. Thanks.
I am still deciding what to do since the Meade LX85 8" is no longer available. I was thinking about the Celestron 9.25" it weighs 20 pounds and I am at an age where weight is a huge factor. I'm still vacillating about it.
Is the SvBony MK105 a Shmidt-Cassegrain?
No. It's a Maksutov-Cassegrain Telescope. They are similar but Maksutov-Cassegrains use a thick meniscus corrector plate instead of a thin one used on Schmidt-Cassegrains. See here for the differences:
ruclips.net/video/zzcAurE3Wc8/видео.html
@tsulasbigadventures Oh, ok got it. Thanks!
I was expecting the dob(newtonian) to win out. But your Meade ACF is not a strict SCT. It's an aplanatic design that is optimized beyond a normal SCT.
That is true and that's why the Meade telescope was so expensive. Before Meade ceased operations they were making all of their SCTs with the ACF system. So, all of the 10" SCTs were aplanatic.
what happen to orion and meade ?
I wonder what happen to all the products that were unsold ?
It's maddening that they just disappeared without a trace. Meade still has their website up and working but when you click on anything it goes to a retailer and they are just selling down their inventory. What a shame.
Tsula's is a 8" meade worth buying used /like new today if meade is out of business ❓
I think so. I bought one of the last Meade LX90 8" made, I think. It works great and I'm very happy with it. If it ever fails I will just take it off the dual fork and get a mount for it. The optics are great. There are places that will work on Meade telescopes.
@tsulasbigadventures
Tsula thank you so much for your response. I really enjoy your channel you and Ed ting and the backyard astronomy. Like you life happens during are working years but now that I'm retired I like to get a telescope and start exploring the Heavens so keep up the awesome videos looking forward to seeing many more.
Skywatcher is on sale for $1399.00
That's a good price for a goto Dob.
Great vids Tsula. Maybe you could not show the fox intro every time and just get right into the content?
OK. Some of my videos don't include the introduction.
Newtonian telescope, but Dobsonian mount.
True.
Hi Tsula, would love to talk with you! Can I send you a private message?
@@scottjobson4025 yes. You can email me at tsula9012@gmail.com. I’m camping at Pinnacles but will be back soon.