CGEM 8 EdgeHD vs CGEM 9.25 in Getting Started Equipment Help and Advice Posted May 11, 2021 25 minutes ago, michael.h.f.wilkinson said: BTW, the 8" EdgeHD is no slouch on planets and the moon either. I have the classic C8, and it gives great results on the planets, moon and sun, but in terms of guiding, even with a focal reducer (0.63x) it is quite a handful. Most of my DSO imaging is with either a 80 mm F/6 triplet with 0.8x focal reducer, or my Meade 6" F/5 Schmidt Newton. I am getting a Starizona Night Owl 0.4x reducer (for regular SCTs, not the EdgeHDs), and that brings the scope down to a more manageable 800 mm focal length at F/4. The image circle is only 16 mm however, but that fits my ASI183MM camera precisely. That reducer is not suitable for DSLRs. If planets are your passion, however, the C9.25 has the edge It's such a difficult decision and I keep going back and forth between CGEM and AVX in both aperture sizes. Back and forth, back and forth I go. I feel like that means even with all the research I've done I'm somehow still not ready to pull any trigger, and my better judgment is telling me to slow down again. Kind of frustrating and confusing to be honest, I almost can't remember what's what anymore and am having trouble making a clear decision. Probably not the best mode for buying something expensive lol.