Canon EF-S 35 mm f/2.8 Macro IS STM
8. Vignetting
| Canon 50D, 35 mm, f/2.8 | Canon 50D, 35 mm, f/4.0 |
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At the maximum relative aperture the brightness loss in the frame corners amounts to 26% (−1.60 EV). We think it is a moderate value, exactly the same as in the case of the Tokina but distinctively better than the performance of the Nikkor which vignetting level was about 39%.
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On stopping down the aperture to f/4.0 the vignetting decreases to 19% (−0.62 EV), and by f/5.6 it becomes completely imperceptible, dropping to 8% (−0.24 EV).
| Canon 50D, JPEG, f/2.8 |
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