I have lots of manual focus camera gear, and i use it ,I love my Rokkor glass and especially my Minolta Bodies. I do not even own an auto focus film body. I love shooting with my vivitar 17-28mm zoom often , but at 4.0 to start its quite slow, i was thinking of getting a 17mm 3.5 prime but that's only a little faster . Also the Minolta 17mm prime is 4.0 too and very hard to come by. An I started to also wish that more wider angle lenses were made for the old MD mount back in tha day too, like they did for other camera mounts. I also know that recently Samyang came out with a 14mm manual focus lens for today's digital cameras, claiming they cover FF too . I wish they made one in M42 mount fo that it can be adapted and used on the many old and defunct Film camera systems like my Minolta. Recently I was looking at a 13mm lens that claimed to cover frame on film camera but it was Minolta MA or SOny alpha mount as it is now known. When i looked at the photos it dawned on me that if one could replace the mount it could be used on an MD body easily . Even tho in stop-down mode albeit the aperture ring would turn the usual direction. the mount would only have to project an additional .5mm as that is the difference between the MA and MD register distances. If i could get an MD to M42 adapter to replace the existing mount i would have an extremely wide angle lens. Yea i know It would be easier to get a Maxxium body, but I would also be easier to get one additional lens in my bag rather than make room for another camera body. So does anyone have any thoughts on this? I'm just spit-balling here.