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Zeiss ZF.2 21mm f/2.8 Distagon T*

Aperture Series: Curving Confluence with Sedges and Boulders (Sony A7)

See also similar series shot with the 18mm f/3.5 Distagon.

Shot using the 24-megapixel Sony A7 using the Novoflex lens adapter with ASTAT tripod collar.

All DSLR lenses are inherently digital friendly to mirrorless cameras (long backfocal distance reduces ray angle to favorable levels). The 21/2.8 Distagon has a 19° ray angle to the sensor which is much steeper than the 11° of the 15/2.8 Distagon but the same as the 18/3.5 Distagon. A ray angle of 19° is still quite “friendly” so there should be no issues with color shading or sharpness at the edges/corners. So it ought to perform to its optical design on the A7/A7R sensor.

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Aperture series 2.8, 4, 5.6, 8, 11, 16 available in full article

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