LensTip.com

Lens review

Sony DT 50 mm f/1.8 SAM

20 May 2009
Arkadiusz Olech

8. Vignetting

In this category the tested lens can be in lost position at the start. Its rivals are designed for full frame, so on a small APS-C/DX sensor can perform better. How does it look in reality? Let’s have a look at the results of our measurements.

Sony DT 50 mm f/1.8 SAM - Vignetting


At maximum aperture the light falloff reaches significant value of 38% (1.36 EV). Sony comes off the worst here, although Nikkor was only slightly better (35%). Canon, on the other hand, corrects this defect the best, as its result reaches 26%. Fortunately, stopping down by 1 EV (to f/2.5) makes the vignetting fall to 20%. Almost unnoticeable situation is recorded at f/2.8, where vignetting amounts to 13% and vanishes absolutely at f/4.0 (6%).


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Sony DT 50 mm f/1.8 SAM - Vignetting