I'm relatively new to astrophotography through a telescope. I've done some work with my Canon EOS 6D. I finally decided to buy a good mount, I am picking up my CEM60 on Tuesday, so that is no longer a concern. I want to start concentrating finding a telescope to mount on the CEM60 and what cameras to use. I understand that the size of pixels and sensor size affects the image through different scopes and the aperture and focal lengths play a role also. I don't really understand those differences totally and why it is important. Currently I own two cameras. The EOS 6D and I also own a Sony A6000, but it has been converted to infrared (hot mirror professionally removed). The 6D has a full frame sensor and the A6000 is a crop sensor but has more pixels. What can I expect from these cameras, and would I be better off looking for a pure astrocamera?
The camera/sensor deal is relatively not critical. Don't worry, don't overthink. But there is a clear choice here, for a reason you're probably unaware of. At the end, it's less important.
These are the important points.
DO NOT GO TOO BIG ON THE SCOPE. The second most common beginner problem, other than getting an inadequate mount. You dodged that one with the CEM60, now dodge the other one. By far the best idea is to start with a refractor in the 51-80mm range. This would be excellent. $489.
But you say you want a forever scope? This is excellent also for learning DSO AP with AND is a scope you'll keep forever as your big target scope. There are lots of big targets.
Can't find one of those? This bats in the same league.
They say these are in stock.
This is in stock, also. Another forever scope.
Using the Sony converted to infrared will work really well on emission nebulae. They emit mostly right at the border of red/infrared, the Canon is somewhat blind there. So, I'd work with that camera first, not the Canon. You'll need an external UV-IR cut filter like this to avoid bloated stars. An intervalometer that will let you shoot things like 30 X 60 second subexposures.
Eventually you'll want a cooled astro specific camera, but there's no need for it right now. If you do decide you want one, this is a good general purpose camera. The field of view will be less than with your Sony, no big deal. Sharpcap can run it well. It sees near IR, of course.
You need software for calibrating/stacking/processing. I recommend Astro Pixel Processor, an astro specific program that does all 3. A serious advantage.
This book will be the best $40 you'll ever spend in DSO imaging.
Edited by bobzeq25, 05 February 2021 - 06:26 PM.