Samyang 100 mm f/2.8 ED UMC MACRO
7. Coma, astigmatism and bokeh
| Center, f/2.8 | Corner APS-C, f/2.8 | Corner FF, f/2.8 |
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| Center, f/4.0 | Corner APS-C, f/4.0 | Corner FF, f/4.0 |
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The astigmatism, understood as an average difference between horizontal and vertical MTF50 function values, amounted to 4.1%. It is a slight value which shouldn’t bother you at all.
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The blur provided by the Samyang 2/100 is pleasing to the eye. The appearance of defocused circles of light confirm that much as they come without any noticeable local extremes. The only thing that might make us complain a bit is a distinct truncation of the circle in the full frame corner at the maximum relative aperture.
| Center, f/2.8 | Corner APS-C, f/2.8 | Corner FF, f/2.8 |
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| Center, f/4.0 | Corner APS-C, f/4.0 | Corner FF, f/4.0 |
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Center, f/5.6 | Corner APS-C, f/5.6 | Corner FF, f/5.6 |
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