Venus Optics LAOWA 6 mm f/2 Zero-D MFT review - Coma, astigmatism and bokeh

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Venus Optics LAOWA 6 mm f/2 Zero-D MFT

14 March 2023

Maciej Latałło

7. Coma, astigmatism and bokeh

The coma correction of this lens made us very pleasantly surprised. Taking into account a huge angle of view and the f/2.0 aperture we expected quite predictable problems. Instead we found out that images of a diode in the very corner of the frame are deformed only very slightly. A round of applause!

E-M5 II, f/2.0, center	E-M5 II, f/2.0, Corner

E-M5 II, f/2.8, center	E-M5 II, f/2.8, Corner

Astigmatism, understood as an average difference between horizontal and vertical MTF50 function values, amounted here just 2.6%. It is a very low value, generated mainly by higher result we got at the maximum relative aperture.

The appearance of out-of-focus images leaves a lot to be desired but, with such parameters and an aperture with just five diaphragm blades, we didn't expect any other result.

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E-M5 II, f/2.0, center	E-M5 II, f/2.0, Corner

E-M5 II, f/2.8, center	E-M5 II, f/2.8, Corner

E-M5 II, f/4.0, center	E-M5 II, f/4.0, Corner