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Sony Vario-Sonnar T* DT 16-80mm f3.5-4.5 ZA Gordon Laing, August 2007

More results :
Outdoor / Resolution / Corner sharpness / Fringe and macro / Geometry / Vignetting

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Sony DT 16-80mm vs Sony DT 18-70mm resolution comparison, with Alpha A100

  To measure and compare the Sony DT 16-80mm's resolving power we photographed the Enhanced Digital Camera Resolution Chart with it and the DT 18-70mm kit lens using the Sony A100 body set to its best quality JPEG and default image tone and sharpening settings.

The crops are taken from the original images, saved as High Quality JPEGs in Photoshop CS2 and presented here at 100%. Each number represents 100 lines per picture height (lpph), so a figure of 20 means a resolution of 2000 lpph.

We tested the Sony DT 16-80mm and DT 18-70mm lenses with the Sony A100 body at a focal length of 35mm and at each aperture setting. The sharpest results on both lenses were found at an aperture of f8, where the DT 16-80mm delivered 2200 lpph of horizontal and vertical resolution respectively.

This result places the DT 16-80mm fractionally ahead of the kit lens, although both perform well in terms of sheer resolving power in the middle of the frame. The differences between the lenses become clear in our other tests though, particularly the real-life outdoor results, so be sure to check out each our these pages to see the full story. Next up, the Sony DT 16-80mm corner sharpness.

Sony DT 16-80mm
Using Sony Alpha A100
Sony DT 18-70mm
Using Sony Alpha A100
Sony DT 16-80mm horizontal resolution
Sony DT 18-70mm horizontal resolution
2200 lpph, DT 16-80mm at 35mm, f8, 100 ISO
2150 lpph, DT 18-70mm at 35mm, f8, 100 ISO


Sony DT 16-80mm
Using Sony Alpha A100
Sony DT 18-70mm
Using Sony Alpha A100
Sony DT 16-80mm vertical resolution
Sony DT 18-70mm vertical resolution
2200 lpph, DT 16-80mm at 35mm, f8, 100 ISO
2150 lpph, DT 18-70mm at 35mm, f8, 100 ISO

Sony DT 16-80mm lens
results continued...

Outdoor / Resolution / Corner sharpness / Fringe and macro / Geometry / Vignetting
All words, images, videos and layout, copyright 2005-2014 Gordon Laing. May not be used without permission.

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