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EXCERPT page containing first few paragraphs. 2021-12-08 02:19:52

Sony A7R III
Voigtlander Nokton 40mm f/1.2 Aspherical


The Voigtlander Nokton 40mm f/1.2 Aspherical suffers from strong veiling flare, which is very common with fast lenses, though lenses like the Zeiss Otus lineup while not immune to it, control it to a far superior degree.

Flare control of the Voigtlander Nokton 40mm f/1.2 Aspherical is not so good—shield the front lens element from non-image forming light, particularly sunlight.

Example: Sprinter van at charcoal kilns

Backlighting is often one of the most attractive lighting situations. Hence a lens that has trouble with backlighting (because of the sun or similar being just out of the frame) is much less versatile and useful than one that controls it well.

Toggle to compare the two versions: the mostly flare-free image was shot with my hand blocking sunlight from striking the front lens element. This is not a worst-case example; I’ve seen worse with the Nokton.

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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.

Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.

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  • Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.

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