LensTip.com

Lens review

Olympus M.Zuiko Digital 12 mm f/2.0 ED

3 August 2011
Arkadiusz Olech

8. Vignetting

On the one hand a wide angle of view, good aperture fastness and small dimensions might suggest some vignetting problems are due to appear. On the other hand we deal here with a small sensor and the lens is not a small “pancake” after all.

At the maximum relative aperture the brightness loss in the frame corners reaches a high level for the Micro 4/3 system – that of 40% (-1.49 EV). Fortunately on stopping down by one stop you can see this aberration decrease by over 20%. By f/2.8 the vignetting level is already 19% (-0.61 EV). The problem practically disappears completely by f/4.0, where the vignetting amounts to just 11%.

Because of the program distortion correction RAW files have a bit wider angle of view that JPEG files. That’s why the vignetting measured using the former format is a bit higher as well. However, in this case the differences are not big - the level of RAW vignetting is just 2-4% higher than that of JPEG files.


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

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

JPEG RAW
f/2.0 f/2.0
Olympus M.Zuiko Digital 12 mm f/2.0 ED - Vignetting Olympus M.Zuiko Digital 12 mm f/2.0 ED - Vignetting
f/2.8 f/2.8
Olympus M.Zuiko Digital 12 mm f/2.0 ED - Vignetting Olympus M.Zuiko Digital 12 mm f/2.0 ED - Vignetting
f/4.0 f/4.0
Olympus M.Zuiko Digital 12 mm f/2.0 ED - Vignetting Olympus M.Zuiko Digital 12 mm f/2.0 ED - Vignetting


Olympus M.Zuiko Digital 12 mm f/2.0 ED - Vignetting