Lens review
2010-07-20
Pentax smc FA 35 mm f/2 AL
6. Distortion
The 35 mm focal length on full frame is already a wide angle lens – you cannot exclude distinct deformations at the edge of the frame on such a sensor. On an APS-C sensor 35 mm focal length is the equivalent of a classic standard, though so we don’t think there will be any serious problems there.
In the case of other 35 mm lenses, tested by us so far, the distortion on small APS-C/DX sensors ranged from –0.73% to –0.87%. The Pentax, reaching 0.75% (slight barrel distortion), fits into that range perfectly.
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