Pentax smc DA 21 mm f/3.2 AL Limited
8. Vignetting
We can say we are surprised in a positive way; taking into account the dimensions of the lens we expected a worse performance. At the maximum relative aperture the vignetting is significant, reaching 33% (-1.16 EV), but it decreases rather swiftly on stopping down. By f/4.0 the brightness loss in frame corners gets to 22% (-0.73 EV) and on implementing f/5.6 aperture the problem becomes completely insignificant (10%).
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. |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 |
