Quote:
Originally Posted by sassan
......... Where is Don to come with some easy DIY suggestion?
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You are cracking me up Sassan. Me, a Nikon guy trying to understand the ins and outs of the various Canon lens mounts. Toooooo late to convert me now.
A rummage around shows that Canon had 4 different lens mounts. 'R' mount, 'FL' mount, 'FD' mount, and 'EF' mount. The critical element appears to be that with the introduction of the EF mount the flange to film/sensor plane was increased from
42mm to 44mm. Necessarily an optical element needs to be included in any adaptor to achieve infinity focus. I have no idea if there is a then compatabilty issue between the various models of DSLR as to their ability to obtain exposure information. Perhaps we need a Canon Lens Resource thread similar to my Nikon one.
Pentax and Nikon have no problems in mounting early lenses, but sensor resolution and in camera processing engine brings its own problems. The 12mp sensor of my D2X will find and magnify flaws on lenses that would have been quite ok when used with films other than the ultra high resolution Technical Pan.
For example I have a Nikkor 300mm (non ED version) f4.5 lens, that is fine for colour negative film but is just plain soft on the D2X. A Nikkor 200mm f4 that has good sharpness and resolution but gives quite a bit of CA towards the edge of the frame, again tested on the D2X. However that same 200mm on Stevies new toy - D300, again a 12mp sensor but with a different processing engine, is superb even wide open without a trace of CA.
Perhaps we need another thread covering known good lenses from the manual focus era in various lens mounts. I have a few top notch Nikon AIs ones (nothing exotic though) for such a list .
I have found mir.com links to the 150mm-600mm giving specs
http://www.mir.com.my/rb/photography...oms/150600.htm
and a link to the converter Joe mentions.
http://www.mir.com.my/rb/photography...nses/fdeos.htm
Don