Samyang 21mm f/1.4 ED AS UMC CS Review

October 7, 2015 | Mark Goldstein |

Samyang 21mm f/1.4 ED AS UMC CS Sharpness at 21mm

The sharpness tests for this review were carried out using a real-world subject rather than a test chart. The Samyang 21mm f/1.4 ED AS UMC CS lens was attached to a Sony A6000 body, which in turn was mounted on a sturdy tripod. Self-timer mode was activated. Slight tonal changes are due to slight changes in natural light during the session.

The full frameThe full frame at 21mm

Centre sharpness is outstanding between f/2 and f/11, with some softness evident wide open at f/1.4. At f/16 and f/22 sharpness is beginning to drop off a little. The edges aren't quite as sharp, with the best results obtained between f/4-f/11.

Aperture Centre Crop Edge Crop
f/1.4 f1_4.jpg f1_4.jpg
f/2 f2.jpg f2.jpg
f/2.8 f2_8.jpg f2_8.jpg
f/4 f4.jpg f4.jpg
f/5.6 f5_6.jpg f5_6.jpg
f/8 f8.jpg f8.jpg
f/11 f11.jpg f11.jpg
f/16 f16.jpg f16.jpg
f/22 f22.jpg f22.jpg