Heya! I recently got my D7100 and I love it. Combined with my 50mm lens it does the trick to say the least. However, I feel like I lack variation, more lenses would be great. My grandfather was also into photography, before he passed away he gave me his old camera; A 'Chinon CM-3' to be precise, and three lenses of the same brand. All in mint condition, except the house that has been through alot since he bought it back in -79. The lenses are: 55mm 135mm 28mm I would LOVE to be able to use these. I am however lacking knowledge about lens converters or if there even exist converters for such old models translated to my new D7100, or well, more recent at least. Am I pushing my luck believing I can use these lenses on the D7100? Do you need any other specs other then the old camera and the new to figure this out? Any help is greatly appreciated. Thanks!