Sharpness

Sharpness at 30mm

For this test, the Sigma 30mm f/2.8 EX DN lens was attached to a Panasonic Lumix DMC-GF3 body, which in turn was mounted on a sturdy tripod. Exposure delay mode was activated. Tonal and colour variances across the crops are due to changes in natural light during the session.

The full frame at 30mm

Centre sharpness remains high through from f4 to f/11, with f/16 and f/22 being adversely affected by diffraction. The edges aren't nearly as sharp as the centre, with f8-11 producing the sharpest results.

Aperture	Centre Crop	Edge Crop
f/2.8
f/4
f/5.6
f/8
f/11
f/16
f/22

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review, lens, compact system camera, sony, test, micro four thirds, csc, mirrorless, sigma, nex, emount, e-mount, Sigma 30mm f2.8 EX DN, digital neo, Sigma 30mm f2.8 EX DN Review, sigma 30mm review, Sigma 30mm