Sigma 150 mm f/2.8 APO EX DG OS HSM Macro
8. Vignetting
It is clear that this aberration is hardly a serious problem here. At the maximum relative aperture the relative brightness loss in the frame corners amounts to 27% (-0.90 EV) and it disappears practically completely (the level of only 3%) by f/4.0. On full frame the vignetting level is higher – you can see it in the photos, presented below.
Please Support UsIf you enjoy our reviews and articles, and you want us to continue our work please, support our website by donating through PayPal. The funds are going to be used for paying our editorial team, renting servers, and equipping our testing studio; only that way we will be able to continue providing you interesting content for free. |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
In fact only at the maximum relative aperture we could complain a bit – the vignetting there is 37% (-1.31 EV) and easy to perceive. The problems disappear by f/4.0 where the light fall-off in the frame corners is just 16% (-0.50 EV). By f/5.6 the vignetting disappears completely, amounting to just 3%.
