Sony FE 90 mm f/2.8 Macro G OSS
5. Chromatic and spherical aberration
![]() |

Please Support UsThe coronavirus crisis has been adversely affecting many businesses and, sad but true, ours is not an exception. Despite that difficult situation we would like to preserve continuity and high quality of publications available on all our websites. Still, we are now aware it might be impossible without additional financial help. That's why we would like to ask all those who visit, read, and care about Optyczne.pl, LensTip.com i Allbinos.com for support - it's enough you send us a small sum of money via PayPal. If a lot people decide to support our websites we think we'll stand a chance and survive next months without any lasting harm. We count on your support and understanding, stay safe and be healthy. |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
You can have some reservations concerning the nearest area of the maximum relative aperture, where the level of that aberration is medium, but that's all. Already by f/4.0 the lateral chromatic aberration decreases to near 0.05% and it becomes low. In the most popular range for a macro lens, so from f/5.6 to f/16 apertures, the aberration remains negligible as its value amounts to about 0.02%.
A7R II, RAW, f/2.8 | A7R II, RAW, f/8.0 |
![]() |
![]() |
Spherical aberration
First photos of this chapter don't show any 'focus shift' symptoms. Additionally, defocused circles of light don't feature anything worrying either. The main difference between them consists of the presence of the aperture even at the maximum relative aperture. Still it has nothing to do with spherical aberration; as a result we can say the lens doesn't have any serious problems in this category.
A7R II, f/2.8, in front of | A7R II, f/2.8, behind |
![]() |
![]() |