Back in high school (1970's) I took several astrophotography classes at our local college and had a great time. Back then we had a Celestron 8 with a regular DSLR attached (ahh yes, film). Watching your videos has sparked my interest again. The amount of equipment available now is a bit intimidating... not sure where to start.
Thanks for checking me out and yes there is alot! Although I do think the options make it more accessible. Trevor Jones aka Astrobackyard has some great videos on where to start. I know he helped me early on!
Congrats on the C6 and the hyperstar, And sorry for the dark sky loss. BTW, you can shoot narrowband from the city with amazing results. I am downtown Seattle with a bright neon sign next to me and my 5min subs background are still at noise floor. The dark sky is still mostly needed for broadband objects.
Hey man thanks it was totally heartbreaking and thanks for sharing your experience! Makes me feel better about my other "brightsky site" LOL. Nice to hear from someone just west of me!!
I recommend for winter to come to north China. Very dry and cold. Clear skies for most of the winter. I know people who have remote observatories here. You can set something in here😏
dude, I totally get you, I found a dark sky site 35 minutes from the city and a car just parked in a very romote area and stayed there for a couple hours with the car lights turned on... so creepy...
If you like f2 from dark side, and it is overkill, then use color camera with L-Extreme filter. There are ways to process color pictures like SHO (Hubble palette).
As F ratios decreases the band pass tends to shifts left. It's not that you can not use those filters its that all of these narrow band filters are really narrow at like 5nm or less and you shift past the nm of light you want. Great video. I love my C6 Hyperstar. :-)
Man that sucks about your dark sky site problem is light pollution is just getting harder & harder to get away from these days. I think regarding shooting at F2 the central obstruction can play a part in the band shift to. That said I love shooting at F2.2 although I use a OSC & IDAS NBZ filter which is 12nm but it does perform really well, I just wish I bought the UHS version but that came out a few weeks afterwards DOH!! Great images btw & look forward to seeing more of your F2 imaging, clear skies!!
Hey thanks! And yes it just seems to get brighter and brighter at night! And double yes to it totally bites my site is gone. I was reading up on how the central obstruction contributes to shift. So interesting. I'm glad it all worked out though! Well aort of. Sounds like you are also getting nice results at around F2 as well. Thanks for the clear skies wish I'll need it here in the upcoming months .
@@astronotna I were fortunate enough to rescue a RASA 11 from a storm damaged observatory, the scope was quite literally a bucket, I had the optics checked out & that side of it is all good, the focuser on the other hand has given me some trouble but slowly I'm taming the beast, I've literally managed to get some of the best images I've ever shot using it so going back to something slower is gonna be difficult.
I'd love your thoughts on my situation. I have a 72mm dublet I use for astrophotography. I also own a 35 year old C8, and a 18 year old C6. Both came to me used and cheap, I used them for visual when I for got into the hobby and then set them aside as I started imaging instead. I am not contemplating my next purchase. I could buy a new APO, the new Askar 103 is tempting, though it may be a little heavy for my HEQ5 (though the C8 is too). I could by a hyperstar for either celestron, though I'm not keen to pay double for the C8, as that would be 10x what the scope cost me. I can spend money on this, but I don't want to waste it.. What would you do?
Quite a situation you have on your hands! maybe this will help. In my story I bought a hyperstar because of the limited time I have to image. With the speed that F2 brought it came at the price of more processing due to the natural vinette a SCT has , also not so perfect stars and collimation. I don't mind any of this and I couldn't imagine living without my hyperstar. Just ask yourself if you need perfect star shapes, are you able to deal with collimation every time it gets moved and are you prepared for heavy post work to even your exposure out? If you are ok with this by all means hyperstar up becuase it's like you have 2 scopes in one and I love that. If the answer is no and you would rather set it and forget it. Askar all the way!!
Youre good with the narrowband filters on fast system that dont have the central obstruction, so fast refractors or lens will be okay, like the lens you have in place. on the c6/hyperstar you will have a problem tho...
Great video bro! I actually said "do it anyway" right before you did, lol. But of course you have to try. Your results speak for themselves. Is everything optimized to the best it can be? Probably not but for 1.5 hrs of acquisition I could live with that! Good luck and clear skies!
Have a look at the short series of videos by Brent Mantooth on YT where he shows the problems of using filters at f/2. You are likely better to use 12nm bandpass vanilla narrowband filters than 7 or 3nm bandpass shifted filters as at f/2 a lot of signal is simply lost in widefield optics especially with SCT OTA's having a central obstruction. Good luck for future imaging.
Thanks my friend! I will check it out. I've since moved to 6.5nm preshifted filters for my hyperstar and touched on the "nerfing" of my hyperstar at 7nm on my latest hyperstar vid. I plan to officially make the comparison in a scheduled video coming soon! I appreciate ya!
Bandpass shift is due to the central obstruction… Also it isn’t that much so 7 nm may be OK.Where you would run into trouble is if you had 3 nm filters that aren’t adjusted for the shift. So I do have a set of Baader filters on order and I have the ZWO.😊
@@astronotna That setup is really slick. I like it a lot. Fast with a lot of light gathering and extremely portable. It has me rethinking my life decisions. I got the C9.25 instead of the C11 thinking about portability, but it still fills my car and is really a chore. I'm also finding processing and other factors (seeing is another) supersedes aperture and even then the difference isn't as big as many believe. The C6 with Hyperstar and maybe the new ZWO harmonic mount (your mount is great, but just thinking). I could probably leave everything together and carry it in one hand.
wouldn't that be nice! Yes I agreeThat AM5 is really tempting! Would make this set up so much more managable.I tell you what though whenever I get a dedicated place at home to do the hobby im definitely going bigger like what you have. Seeing has been terrible for me lately. Hopefully all this smoke clears out soon. So many clear nights getting smoked out.
![Bandwidth choices for narrowband imaging with fast optics [4k]](http://i.ytimg.com/vi/rtFX92dZE_w/mqdefault.jpg)
Before shortening the focuser, get the starizona coma corrector instead. Celestron 0.63 corrector is rubbish.
Back in high school (1970's) I took several astrophotography classes at our local college and had a great time. Back then we had a Celestron 8 with a regular DSLR attached (ahh yes, film). Watching your videos has sparked my interest again. The amount of equipment available now is a bit intimidating... not sure where to start.
Thanks for checking me out and yes there is alot! Although I do think the options make it more accessible. Trevor Jones aka Astrobackyard has some great videos on where to start. I know he helped me early on!
Congrats on the C6 and the hyperstar, And sorry for the dark sky loss.
BTW, you can shoot narrowband from the city with amazing results. I am downtown Seattle with a bright neon sign next to me and my 5min subs background are still at noise floor. The dark sky is still mostly needed for broadband objects.
Hey man thanks it was totally heartbreaking and thanks for sharing your experience! Makes me feel better about my other "brightsky site" LOL. Nice to hear from someone just west of me!!
I recommend for winter to come to north China. Very dry and cold. Clear skies for most of the winter. I know people who have remote observatories here. You can set something in here😏
dude, I totally get you, I found a dark sky site 35 minutes from the city and a car just parked in a very romote area and stayed there for a couple hours with the car lights turned on... so creepy...
If you like f2 from dark side, and it is overkill, then use color camera with L-Extreme filter. There are ways to process color pictures like SHO (Hubble palette).
Made it to the end. 😊
Thanks so much for watching this!!
As F ratios decreases the band pass tends to shifts left. It's not that you can not use those filters its that all of these narrow band filters are really narrow at like 5nm or less and you shift past the nm of light you want. Great video. I love my C6 Hyperstar. :-)
Thanks for that!
Man that sucks about your dark sky site problem is light pollution is just getting harder & harder to get away from these days. I think regarding shooting at F2 the central obstruction can play a part in the band shift to. That said I love shooting at F2.2 although I use a OSC & IDAS NBZ filter which is 12nm but it does perform really well, I just wish I bought the UHS version but that came out a few weeks afterwards DOH!!
Great images btw & look forward to seeing more of your F2 imaging, clear skies!!
Hey thanks! And yes it just seems to get brighter and brighter at night! And double yes to it totally bites my site is gone. I was reading up on how the central obstruction contributes to shift. So interesting. I'm glad it all worked out though! Well aort of. Sounds like you are also getting nice results at around F2 as well. Thanks for the clear skies wish I'll need it here in the upcoming months .
@@astronotna I were fortunate enough to rescue a RASA 11 from a storm damaged observatory, the scope was quite literally a bucket, I had the optics checked out & that side of it is all good, the focuser on the other hand has given me some trouble but slowly I'm taming the beast, I've literally managed to get some of the best images I've ever shot using it so going back to something slower is gonna be difficult.
Wow what an awesome find and story to boot! That scope was meant to be yours! Sounds like it's treated you well. Amazing
I'd love your thoughts on my situation. I have a 72mm dublet I use for astrophotography. I also own a 35 year old C8, and a 18 year old C6. Both came to me used and cheap, I used them for visual when I for got into the hobby and then set them aside as I started imaging instead. I am not contemplating my next purchase. I could buy a new APO, the new Askar 103 is tempting, though it may be a little heavy for my HEQ5 (though the C8 is too). I could by a hyperstar for either celestron, though I'm not keen to pay double for the C8, as that would be 10x what the scope cost me. I can spend money on this, but I don't want to waste it.. What would you do?
Quite a situation you have on your hands! maybe this will help. In my story I bought a hyperstar because of the limited time I have to image. With the speed that F2 brought it came at the price of more processing due to the natural vinette a SCT has , also not so perfect stars and collimation. I don't mind any of this and I couldn't imagine living without my hyperstar. Just ask yourself if you need perfect star shapes, are you able to deal with collimation every time it gets moved and are you prepared for heavy post work to even your exposure out? If you are ok with this by all means hyperstar up becuase it's like you have 2 scopes in one and I love that. If the answer is no and you would rather set it and forget it. Askar all the way!!
Youre good with the narrowband filters on fast system that dont have the central obstruction, so fast refractors or lens will be okay, like the lens you have in place. on the c6/hyperstar you will have a problem tho...
Great video bro! I actually said "do it anyway" right before you did, lol. But of course you have to try. Your results speak for themselves. Is everything optimized to the best it can be? Probably not but for 1.5 hrs of acquisition I could live with that! Good luck and clear skies!
Thanks my friend!!
Have a look at the short series of videos by Brent Mantooth on YT where he shows the problems of using filters at f/2. You are likely better to use 12nm bandpass vanilla narrowband filters than 7 or 3nm bandpass shifted filters as at f/2 a lot of signal is simply lost in widefield optics especially with SCT OTA's having a central obstruction. Good luck for future imaging.
Thanks my friend! I will check it out. I've since moved to 6.5nm preshifted filters for my hyperstar and touched on the "nerfing" of my hyperstar at 7nm on my latest hyperstar vid. I plan to officially make the comparison in a scheduled video coming soon! I appreciate ya!
So the ASI183 is good and easy to use on the SE6? Newb here, got the hyperstar although no wedge or equatorial mount, so need to be quick.
I think it is. Has a really good pixel scale with the c6. 294 would be a good option too!
Sorry for the dark place!
Thanks buddy! Hopefully I can get a super cool place your yours someday my friend!
@@astronotna Lets hope :)
Bandpass shift is due to the central obstruction… Also it isn’t that much so 7 nm may be OK.Where you would run into trouble is if you had 3 nm filters that aren’t adjusted for the shift. So I do have a set of Baader filters on order and I have the ZWO.😊
Oh thanks for this ! Nice to have confirmation from someone who has been through it. I've been really enjoying this set up so far
@@astronotna That setup is really slick. I like it a lot. Fast with a lot of light gathering and extremely portable. It has me rethinking my life decisions.
I got the C9.25 instead of the C11 thinking about portability, but it still fills my car and is really a chore. I'm also finding processing and other factors (seeing is another) supersedes aperture and even then the difference isn't as big as many believe.
The C6 with Hyperstar and maybe the new ZWO harmonic mount (your mount is great, but just thinking). I could probably leave everything together and carry it in one hand.
wouldn't that be nice! Yes I agreeThat AM5 is really tempting! Would make this set up so much more managable.I tell you what though whenever I get a dedicated place at home to do the hobby im definitely going bigger like what you have. Seeing has been terrible for me lately. Hopefully all this smoke clears out soon. So many clear nights getting smoked out.
First!!
Not good about the dark site that's rough
Yea that was a major banner! So sad