800mm Mirror Lens. Focus throw and that is certainly required here. It was quite a bit smaller than my f63 prooptic I think thats a Adorama-Samyang brand but Im not sure. I find my 500mm mirror lens is useful in many cases. There was a used quantray.
Samsung NX1000 NX3300 NX2000. Tele Mirror 800mm for Pentax k100d k110d K M k10d k20d k-7 k-5 k200d Etc. Have only ever used a standard 500 mm telephoto for this rather than a catadioptric lens. Powerful Canon EOS Digital fit Samyang 800mm F8 Tele Mirror Lens Astro Wildlife. So it comes down to what you want to photograph. 462014 So whats a long lens type of guy without a lot of spare change to do.
Many of the newer Samyang lenses have a 250.
If you want Moon shots with good detail a mirror lens will probably give a reasonable result at 500-800 mm. And they come in 300mmf 63 500mm63 500mmf8 800mmf8 models. So it seems strange that the Samyang f8 is so freaking bigIm curious how well it works also. There was a used quantray. I find my 500mm mirror lens is useful in many cases. Everyone knows these lenses are junk and cant take a sharp photos and the internet is full of confirming examples the SonyMinolta 500mm AF reflex is a notable exception and in a class all by itself.