EXCERPT page containing first few paragraphs. 2021-10-28 02:10:21
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The Voigtlander 90mm f/3.5 APO is a very compact lens with an APO designation. Its correction for longitudinal chromatic aberration and secondary longitudinal chromatic aberration is excellent but definitely not neutral as with its 180mm f/4 APO-Lanthar sibling.
The Voigtlander 90mm f/3.5 APO-Lanthar can be shot on Nikon or Canon (with adapter) or mirrorless (e.g., Sony mirrorless with adapter). As of 2015, it has been discontinued for some years but can be found on the open market (ditto for several of its APO siblings).
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