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Nikon 50mm f/1.2 AIS Overview
The Nikon 50mm f/1.2 AIS (about $700) is Nikon’s fastest (brightest aperture) lens for DSLRs. Indeed it is the only f/1.2 lens as of late 2013, being a holdout from the bygone days of film. Will Nikon ever produce an f/1.2 lens again in the digital age? The signs don’t point to it, which is perhaps why the 50/1.2 AIS is still available as of late 2013.
Optical performance
The 50/1.2 AIS is a relatively simple 7-element double-gauss spherical design with loads of hazy spherical aberration and hence focus shift, a classic design for a 50mm. Shooting in the f/2 - f/4 range can be a bit tricky because of focus shift.
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Diglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format.
Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang.
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