glenbarrington Posted April 29, 2006 Share Posted April 29, 2006 I started looking for lens adapters for my E500 and noticed there wereno adapters available for any Canon lens mount. At least I couldn'tfind any. Does anyone know why there would be so many adapters forOTHER lens mounts but none for Canon? Link to comment Share on other sites More sharing options...
mark u Posted April 29, 2006 Share Posted April 29, 2006 I assume you mean Canon FD lenses (since EOS EF lenses require electronic control). The answer is that although at first sight the comparative lens registration distance (between the flange and sensor) would make this possible, protrusions on the rear of FD lenses interfere with the lens contacts in the camera, so sadly FD lenses remain orphaned without the possibility of using them on a DSLR. Link to comment Share on other sites More sharing options...
OCULUS New York Posted April 29, 2006 Share Posted April 29, 2006 Ever go into a Ford dealer and ask why they have no Chevy parts? Try it sometime. Ray Hull Link to comment Share on other sites More sharing options...
glenbarrington Posted April 30, 2006 Author Share Posted April 30, 2006 Yeah but if you go into that Ford dealer and you notice that dealer is carrying Saab parts, and Toyota Parts and Dodge parts, wouldn't you wonder why no Chevy parts? Actually, I discovered elsewhere that Canon FD mount has Canon 'stuff' (chevy) sticking out the back that interferes with Olympus 'stuff' (BMW motorcycle) inside the mirror box. I still don't know why there are no FL mount adapters, I'd buy one but maybe I'm the only one. Link to comment Share on other sites More sharing options...
douglas_green1 Posted May 1, 2006 Share Posted May 1, 2006 I would argue that there are two reasons that there are no FL to 4/3 adapters. First of all, the FL is such an obsolete mount that there are few people who would want it, and 2nd of all, more people would try to misuse it with FD lenses that there would be more disgruntled customers than actual customers who want it for it's intended use. Certainly, if it were technically feasible, there would be a market for using FD-mount lenses on some current DSLRs. But if it can't be done with the short flange to focal plane distance of the Olympus 4/3 system, it certainly can't be done with any of the others, at least without including optics in the adapter that add substantial cost and quality degradation. Link to comment Share on other sites More sharing options...
skip_williams Posted May 2, 2006 Share Posted May 2, 2006 It should be possible, as Canon FD lenses have a shorter film-to-flange distance that just about every other major lens mount, save the Olypmpus Pen-F and E-System. Any other mounts require adding a lens element, which most people don't like. <br> <br> Here are the distances for most of the more-common mounts. Notice that the Canon FD is very close to the top of the list: <br> <br> CAMERA SYSTEM MOUNT TYPE REGISTER <br> Olympus Pen F bayonet 28.95 <br> Olympus E1 bayonet 38.67 <br> Konica F bayonet 40.50 <br> Canon R/FL/FD breech or bayonet 42.00 <br> Minolta MD bayonet 43.50 <br> Canon EOS bayonet 44.00 <br> Sigma SA bayonet 44.00 <br> Exakta/Topcon bayonet 44.70 <br> K-mount bayonet 45.46 <br> M42 screw thread 45.46 <br> Contax/Yashica bayonet 45.50 <br> Olympus OM bayonet 46.00 <br> Nikon bayonet 46.50 <br> Leica R bayonet 47.00 <br> Topcon IC1 bayonet 55.00 <br> <br> Skip Link to comment Share on other sites More sharing options...
douglas_green1 Posted May 3, 2006 Share Posted May 3, 2006 The problem is not the flange to focal plane distance. The problem is that Canon FD lenses have linkages that project out of the back of the lens and would physically interfere with the electrical contacts in an 4/3 body. Link to comment Share on other sites More sharing options...
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