Well...not the moon specifically, mainly I want some long, long reach for a low-ish price. I wouldn't carry this around that much (because it's unlikely to fit in my bag), but more as something to pull out a few times a year to play around with. Specifically looking for: 500mm focal length or longer. Three figure price, tops. Must resolve better than simply cropping 100-300mm. As small as possible. No, I'm not being impossible. If there's a good reflector lens out there, I'd prefer it over a comparable refactor that's the size of a bat. Mmmm...doughnuts... Prime, zoom doesn't matter. Aperture really doesn't matter, because all these things are f/8-11 and that's dark enough to require a tripod all the time. So, lens experts, tell me what's out there.