Samyang 85 mm f/1.8 ED UMC CS
8. Vignetting
| Fujifilm X-T2, f/1.8 | Fujifilm X-T2, f/2.0 |
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| Fujifilm X-T2, f/2.8 | Fujifilm X-T2, f/4.0 |
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Here small physical dimensions of the Samyang make themselves felt. At the maximum relative aperture the brightness loss in the frame corners amounts to as much as 46% (−1.77 EV) and it is a high result, especially in a case of a lens designed for a sensor smaller than full frame. After employing f/2.0 the vignetting decreases to a still significant value of 41% (−1.51 EV). You can get rid of that aberration only by f/2.8 where it reaches a moderate level of 19% (−0.62 EV); it disappears practically completely only after employing f/4.0, where it amounts to just 7% (−0.22 EV).
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| Fujifilm X-T2, JPEG, f/1.8 |
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