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Nikon D50 review with 18-55mm f3.5~5.6 DX lens Gordon Laing, December 2005


 



 




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

Geometry, wide angle (bundled lens)

  To measure geometric distortion we photographed a custom test chart consisting of a grid pattern with perfectly straight lines. Here are the results for the bundled lenses at their widest focal length with an aperture of f8 in Aperture Priority mode. The images were analysed with Imatest using 5th Order line calculation and the full areas presented here at a reduced resolution.

The image left was taken with the Nikon D50 and the 18-55mm DX at 18mm f8. Barrel distortion was measured at 3.51% which is similar to the Canon and Konica Minolta bundled lenses, but not as low as the Pentax.

Canon EOS-350D
Konica Minolta Dynax 5D
Pentax *istDL
18-55mm EF-S at 18mm f8
Distortion: 3.35% barrel
  18-70mm DT at 18mm f8
Distortion: 3.49% barrel
  18-55mm DA at 18mm f8
Distortion: 2.76% barrel


Geometry, telephoto (bundled lens)

  To measure geometric distortion we photographed a custom test chart consisting of a grid pattern with perfectly straight lines. Here are the results for the bundled lenses at their longest focal length with an aperture of f8 in Aperture Priority mode. The images were analysed with Imatest using 5th Order line calculation and the full areas presented here at a reduced resolution.

The image left was taken with the Nikon D50 and the 18-55mm DX at 55mm f8. Barrel distortion was measured at 0.169% which is barely noticeable and the best in the group.

Canon EOS-350D
Konica Minolta Dynax 5D
Pentax *istDL
18-55mm EF-S at 55mm f8
Distortion: 0.389% pincushion
  18-70mm DT at 70mm f8
Distortion: 0.309% pincushion
  18-55mm DA at 55mm f8
Distortion: 0.58% pincushion

Nikon D50 results continued...

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

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