Panasonic Lumix G 25 mm f/1.7 ASPH.
7. Coma, astigmatism and bokeh
E-M10, 25 mm, f/1.7, center | E-M10, 25 mm, f/1.7, corner |
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E-M10, 25 mm, f/2.2, center | E-M10, 25 mm, f/2.2, corner |
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The astigmatism, understood as an average difference between horizontal and vertical MTF50 function values, amounted to 8%. Although it influences the image quality near the maximum relative aperture, the Panasonic fares better here than the Olympus 1.8/25 and it is almost as good as the more expensive Panaleica.
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The out-of-focus circles of light look nicely. The light spread is even, without any distinct local extremes; the only reservation concerns a bit lighter rim on the edge of the circle.
E-M10, 25 mm, f/1.7, center | E-M10, 25 mm, f/1.7, corner |
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E-M10, 25 mm, f/2.2, center | E-M10, 25 mm, f/2.2, corner |
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E-M10, 25 mm, f/3.2, center | E-M10, 25 mm, f/3.2, corner |
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