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Hi David
I agree with what is being said about the C9.25 and C14. But I think you would agree with me that technique is the most important factor when imaging the planets. I have spent quite a bit of time scouring the net and looking at image quality produce by various types of scopes/camera combination. From what I have seen there is a wide range of image quality produce by amateur around the world but it looks like only a small percentage of these can produce high quality planetary image on a regular basis.
As a point of interest here are three image of Saturn taken by Edward Roach (you will find his work posted on Astromart Forum). He used a Meade LX90 8" SCT @ f/35, seeing 6-8/10, transparency 3/5, DMK 21AF04 for luminance, ToUcam 840 for RGB. These images are as good as Damian’s work and he is only using an 8” SCT.
While equipment is an important factor in planetary imaging, I would say that technique is a winning factor in producing high quality planetary image on a regular basis.
I think with the right camera plus technique your 10” GSO would probably produce the same quality of work.
Anthony
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