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p.1 #5 · p.1 #5 · Canon FD 85mm 1.2L vs Canon EF 85mm 1.2L II ? | |
They share a similar but not identical optical design. The FD 85L 1.2 had 8 elements in 6 groups, including one aspherical element. The EF lens has an improved 8 element, 7 group design, with two high-refraction elements in addition to the aspherical element. Both have a floating lens group for close focus correction. The New FD version was much lighter, interestingly.
The EF 85L II benefits from improved coatings, rounded aperture diaphragm blades, and ETTL-II compatible firmware in addition to 1.8x faster autofocus over the EF 85L, but otherwise have the same optics.
A good write up of the original EF 85L vs. FD 85L is here:
http://www.mir.com.my/rb/photography/hardwares/classics/eos/EF-lenses/EF85mmf12LUSM/index.htm
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