Tonight I tested a small Maksutov-Cassegrain catadioptric telesope on the waxing Moon. I normally use an ED-apo, so the Mak required some getting used to. It has an aperture of only 90 mm (3.5") but a focal lenth of 1250 mm, so the image is much darker than what I am accustomed to.
I attached my Canon 1000D DSLR with a T2-adapter to the 1.25" eyepiece opening. The Moon almost fills the camera's CCD vertically so one has to allow for a fair amount of re-pointing. Typically for this kind of 'scope., color fringes are not an issue. The sharpness is, in my opinion, not very satisfactory, but then, today's seeing wasn't that great. Due to the small aperture and lomg focal distance, the exposure time is fairly long, with 1/15 s in the attached image. Much more than what I am used to with my refractor, of course. That might also account for some lack of definition.
Still, given the attractive price of the telescope (around 150 Euros) and its low weight and dimensions, it's not a bad choice if you are looking for something that is easy to carry and can safely be mounted on any reasonably sturdy camera tripod. One just has to be aware of its limitations.