PREMIUM MF 14mm F2.4
Samyang 14mm F2.4
AF 14 / 2.8 FE
AF 14 / 2.8 FE
測試機身A7R2
AF system is spot on, being fast, accurate and silent.
The lens returns an excellent set of figures, showing a very high level of sharpness. Images look crisp.
Centrally, sharpness is already very good at f/2.8 and f/4 and reaches an excellent level from f/5.6 through to f/16. It remains very good even at f/22.
The edges are very good from f/2.8 to f/8, excellent at f/11 and f/16 and very good at f/22. This is especially pleasing for an ultra-wide lens, resulting in a very even crispness from centre to edge.
CA (Chromatic Aberration) is highly corrected and the results are impressive, especially for such a wide lens. In most images there is no intrusive CA even at the edges.
Barrel distortion, measuring at -3.66%, is very obvious.(唯一的缺點)
參考一下 FE1635F4 A7R
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