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Ok Brendan, I am showing my "newbie-ness" to astro-photography here, but I want to understand the effects of focal length on ease of imaging.
The C9.25 and C11 EdgeHDs come with Fastar/Hyperstar compatibility. So you can image at F10 or F2.
My assumption is that if I cheat and use a webcam and stack the frames I should be able to get some pretty reasonable shots of planets at F10 without need for guiding, no?
For DSOs, I would use the Hyperstar setup and something like the QHY8 camera which is very small in diameter. Since I would be working at F2, can I get away without a guide scope? Now since the focal length would then be reduced to something like 22 inches, wouldn't the DSO being imaged be just a tiny dot? If I had a very high resolution camera that might be OK, but I won't be able to afford that - or is there some other trick to this?
Otherwise my preference for a higher level of astrophotography would be to buy a nice 4" triplet fast refractor later down the track when I have more time (ie kids all grown up!).
Thanks in advance,
James
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