A history of Sony Alpha - Minolta AF 50 mm f/1.7 versus Sony DT 50 mm f/1.8 SAM - Vignetting

Have you rated your lenses yet?

A history of Sony Alpha - Minolta AF 50 mm f/1.7 versus Sony DT 50 mm f/1.8 SAM

1 December 2009

Szymon Starczewski

8. Vignetting

In this category we should expect a victory of the full frame Minolta. On the other hand, though, the Sony is a bit less fast, has bigger dimensions and its rear element is as big as that of the Minolta so it is definitely not fighting a losing battle.

Minolta AF 50 mm f/1.7 – f/1.7	Sony DT 50 mm f/1.8 SAM – f/1.8

Minolta AF 50 mm f/1.7 – f/2.0	Sony DT 50 mm f/1.8 SAM – f/2.0

Minolta AF 50 mm f/1.7 – f/2.8	Sony DT 50 mm f/1.8 SAM – f/2.8

The comparison of the results is to the Sony’s disadvantage, though. At the maximum relative aperture the Sony loses 38% of light in the corners whereas the Minolta – 33%. The difference is getting bigger by f/2.0. The Sony loses 35% of light, the Minolta – only 25%. Fortunately in both cases by f/2.8 the vignetting problem disappears. In the case of the Sony it amounts to 13%, in the case of the Minolta – to 11%.

Please Support Us

If 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.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -