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Lens review

Venus Optics LAOWA 9 mm f/2.8 ZERO-D

20 April 2018
Arkadiusz Olech

5. Chromatic and spherical aberration

Chromatic aberration

The Venus Optics LAOWA 9 mm f/2.8 ZERO-D doesn’t have practically any problems concerning longitudinal chromatic aberration. Even at the maximum relative aperture it would be difficult to see any colouring in images.

Venus Optics LAOWA 9 mm f/2.8 ZERO-D - Chromatic and spherical aberration


The graph shown below proves that the performance concerning lateral chromatic aberration is also good.

Venus Optics LAOWA 9 mm f/2.8 ZERO-D - Chromatic and spherical aberration

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That aberration increases with stopping down but never reaches medium values. Taking into account the wide angle of view of this lens, the lens fares very well in this category.

Fujifilm X-T2, RAW, f/2.8 Fujifilm X-T2, RAW, f/8.0
Venus Optics LAOWA 9 mm f/2.8 ZERO-D - Chromatic and spherical aberration Venus Optics LAOWA 9 mm f/2.8 ZERO-D - Chromatic and spherical aberration


Spherical aberration

It would be difficult to notice any ‘focus shift’ effect in first photos of this chapter. The parameters of the lens made it impossible to create circles of light of a sensible size in front of and behind the focus so we had to take other premises into account. Lack of ‘focus shift’ and an excellent image quality in the frame centre already from f/2.8 make us think that the lens doesn’t have any noticeable problems related to spherical aberration.