steve_chan5 Posted February 12, 2004 Share Posted February 12, 2004 Does anyone know if the 85/1.8 S-mount (ltm), R-mount and FL mount lenses were optically identical? I looked on the Canon museum and saw that they seemed to have the same filter size, # of elements and groups. My guess is that in the interests of economy, they'd keep the same optics and just put them in different mounts, but I'm just guessing. Link to comment Share on other sites More sharing options...
www.antiquecameras.net Posted February 12, 2004 Share Posted February 12, 2004 The Lens <a href="http://members.aol.com/oct0969/sell.htm">BOOK</a> that I have for sale, confirms that the late, black version LTM 85mm/1.8 lens and the FL lens are the same 5 element design. Attached is the optical formula<p><div></div> Link to comment Share on other sites More sharing options...
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