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Olympus E-500 / EVOLT E-500 review with Zuiko Digital 14-45mm f3.5~5.6 Gordon Laing, February 2006


 



 




Outdoor
/ Resolution / Noise / Corner sharpness / Fringe and macro / Geometry / Vignetting

Olympus E-500 wide-angle uniformity comparison

  To measure lens vignetting and light fall-off we photographed a white target with a highly diffused custom filter. Here are the results for the cameras at their widest focal lengths with the apertures wide open and the focus at infinity. The images were analysed with Imatest and the full areas presented here at a reduced resolution. Bigger percentages are better.

The image left was taken with the Olympus E-500 with the Zuiko Digital 14-45mm lens at 14mm f3.5 (equivalent to 28mm). Here the light falls off in the corners to an average of 74.1% of the center measurement, which is roughly in the middle of the pack.

Canon EOS-350D
Konica Minolta Dynax 5D
Nikon D50
18-55mm EF-S at 18mm f3.5
Mean corner fall-off: 68.8%
  18-70mm DT at 18mm f3.5
Mean corner fall-off: 73.5%
  18-55mm DX at 18mm f3.5
Mean corner fall-off: 81%


Olympus E-500 telephoto uniformity comparison

  To measure lens vignetting and light fall-off we photographed a white target with a highly diffused custom filter. Here are the results for the cameras at their longest focal lengths with the apertures wide open and the focus at infinity. The images were analysed with Imatest and the full areas presented here at a reduced resolution. Bigger percentages are better.

The image left was taken with the Olympus E-500 with the Zuiko Digital 14-45mm lens at 45mm f5.6 (equivalent to 90mm). Here the light falls off in the corners to an average of 71.3% of the center measurement, which is noticeably worse than the kit lenses of its rivals. This vignetting is also visible with the aperture closed down to f8 as can be seen in the telephoto Geometry results earlier.

Canon EOS-350D
Konica Minolta Dynax 5D
Nikon D50
18-55mm EF-S at 55mm f5.6
Mean corner fall-off: 83.8%
  18-70mm DT at 70mm f5.6
Mean corner fall-off: 90.1%
  18-55mm DX at 55mm f5.6
Mean corner fall-off: 90.3%

Results continued...

Outdoor / Resolution / Noise / 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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