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Articles

2009-12-22
 

A history of Sony Alpha - Minolta AF 85 mm f/1.4 G D versus Sony Zeiss Planar T* 85 mm f/1.4

8. Vignetting

Both lenses, although fast and full frame, deal with vignetting well, having the same results within the margin of error.

Minolta AF 85 mm f/1.4 G D – f/1.4 Zeiss Planar T* 85 mm f/1.4 – f/1.4
A history of Sony Alpha - Minolta AF 85 mm f/1.4 G D versus Sony Zeiss Planar T* 85 mm f/1.4 - Vignetting A history of Sony Alpha - Minolta AF 85 mm f/1.4 G D versus Sony Zeiss Planar T* 85 mm f/1.4 - Vignetting
Minolta AF 85 mm f/1.4 G D – f/2.0 Zeiss Planar T* 85 mm f/1.4 – f/2.0
A history of Sony Alpha - Minolta AF 85 mm f/1.4 G D versus Sony Zeiss Planar T* 85 mm f/1.4 - Vignetting A history of Sony Alpha - Minolta AF 85 mm f/1.4 G D versus Sony Zeiss Planar T* 85 mm f/1.4 - Vignetting
Minolta AF 85 mm f/1.4 G D – f/2.8 Zeiss Planar T* 85 mm f/1.4 – f/2.8
A history of Sony Alpha - Minolta AF 85 mm f/1.4 G D versus Sony Zeiss Planar T* 85 mm f/1.4 - Vignetting A history of Sony Alpha - Minolta AF 85 mm f/1.4 G D versus Sony Zeiss Planar T* 85 mm f/1.4 - Vignetting

At the maximum aperture the Minolta’s brightness loss in the frame corners amounts to 39% (-1.42 EV) and the Sony’s result is by 2% higher. Taking into account the fact that the errors in this category reach 1-2% we consider it a draw. There is also a draw by f/2.0 where the Minolta’s light fall-off is 21% and the Sony’s – 22%. The same difference is by f/2.8 where we reach the results at the level of 6-7% so imperceptible in ordinary shots.

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A history of Sony Alpha - Minolta AF 85 mm f/1.4 G D versus Sony Zeiss Planar T* 85 mm f/1.4 - Vignetting

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