LensTip.com

Lens review

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM

20 October 2009
Arkadiusz Olech

8. Vignetting

Owners of DSLRs with sensors of APS-C/DX format, mounting Sigma 120-400 mm OS, won’t have reasons to be bothered by vignetting.

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM - Vignetting


At the shortest focal length and the maximum aperture the light falloff in the corners amounts to 15% (-0.48 EV). After using f/5.6 aperture it lowers to a slim level of 3%.


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

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

At 200 mm vignetting is practically unnoticeable even at the maximum aperture, where it totals 11% (-0.32 EV). At f/5.6 falls additionally to mere 7%.

A very similar situations is at 300 mm, where at the maximum aperture vignetting amounts to only 13% (-0.41 EV) and at f/8.0 falls to 3%.

The most potential problems this aberration will give us at the longest focal length, where at the maximum aperture it reaches the level of 19% (-0.62 EV). The problem disappears entirely at f/8.0 (8%).

In this category similarly good, or even better results were recorded by Canon 100-400 mm IS and Tokina 80-400 mm.


Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM - Vignetting

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM - Vignetting

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM - Vignetting

Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM - Vignetting