LensTip.com

Lens review

Canon EF 300 mm f/4L IS USM

13 November 2009
Arkadiusz Olech

8. Vignetting



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 light fall-off in the corners on a small APS-C sensor is not a problem. By f/4.0 the vignetting level amounts to only 12% (-0.38 EV) and decreases to 2% by f/5.6. After using the converter the performance is even better because even at maximum aperture the brightness loss in the corners amounts to only 6% (-0.17 EV).

Canon EF 300 mm f/4L IS USM - Vignetting



Canon EF 300 mm f/4L IS USM - Vignetting