Panasonic G Macro 30 mm f/2.8 ASPH. MEGA O.I.S.
7. Coma, astigmatism and bokeh
E-M10, 30 mm, f/2.8, center | E-M10, 30 mm, f/2.8, corner |
E-M10, 30 mm, f/4.0, center | E-M10, 30 mm, f/4.0, corner |
The astigmatism, understood as an average difference between horizontal and vertical MTF50 function values, amounted to 6.3%. It is not a result that should bother you…
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The circles of light in blurry areas look sensibly well but nothing more. The distinct lighter rim is very annoying and its intensity increases with the stopping down. Fortunately by f/2.8, where it is the easiest to get out-of-focus areas in our photos, the rim is the weakest.
E-M10, 30 mm, f/2.8, center | E-M10, 30 mm, f/2.8, corner |
E-M10, 30 mm, f/4.0, center | E-M10, 30 mm, f/4.0, corner |
E-M10, 30 mm, f/5.6, center | E-M10, 30 mm, f/5.6, corner |