Venus Optics LAOWA 12 mm f/2.8 ZERO-D
8. Vignetting
| Canon 50D, f/2.8 | Canon 50D, f/4.0 |
|
|
No reason to worry – at the maximum relative aperture the vignetting amounts to 34% (−1.19 EV), and by f/4.0 and f/5.6 it decreases to 16% (−0.51 EV) and 13% (−0.41 EV) respectively.
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. |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Now let’s check how the situation changes when you pass to full frame – below we present photos taken with the lens attached to the Canon EOS 5D Mark III.
| Canon 5D III, f/2.8 | Canon 5D III, f/4.0 |
|
|
| Canon 5D III, f/5.6 | Canon 5D III, f/8.0 |
|
|
When you combine moderate physical dimensions, good aperture fastness for a given focal length and a huge angle of view you have to reap what you have sown. At the maximum relative aperture the vignetting reaches a monstrous level of 71% (−3.54 EV), easily one of the highest results seen in our tests so far. After passing to f/4.0 the brightness loss decreases to a still very high value of 54% (−2.24 EV). That aberration also remains visible by f/5.6, where it reaches 33% (−1.15 EV). By f/8.0 we got a result of 27% (−0.93 EV), and further stopping down didn’t have any measureable effect on the level of this aberration.
| Canon 5D III, JPEG, f/2.8 |
 |
