LensTip.com

Lens review

Canon EF 28 mm f/2.8 IS USM

25 October 2012
Arkadiusz Olech

5. Chromatic and spherical aberration


Chromatic aberration

With this fastness of the lens we didn’t expect any serious problems with the longitudinal chromatic aberration and we were right – the photos below show it perfectly well.

Canon EF 28 mm f/2.8 IS USM - Chromatic and spherical aberration



Please Support Us

The 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.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

The lateral chromatic aberration increases slightly on stopping down but nowhere it reaches high values, only momentarily getting close to medium ones. Here the lens should be praised, then.

Canon EF 28 mm f/2.8 IS USM - Chromatic and spherical aberration

Canon EF 28 mm f/2.8 IS USM - Chromatic and spherical aberration

Spherical aberration

Spherical aberration in the tested lens is properly corrected. We didn’t notice any focus shift and defocused images of light points situated in front of and behind the focus are similar, without any significant local extremes. It is true, you can notice a darker ring in the first of those circles but its intensity is not high.

Canon EF 28 mm f/2.8 IS USM - Chromatic and spherical aberration