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  DSLR Tips



 
Pentax *istDL review with 18-55mm f3.5~5.6 DA lens Gordon Laing, December 2005


 



 




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

Pentax *istDL resolution comparison

  To measure resolving power we photographed the standard ISO 12233 test chart with each camera set to its best quality JPEG settings. We then set the bundled lenses to f8 using Aperture Priority mode. The crops are taken from the originals and presented here at 100%. Each number represents 100 lines per picture height (lpph), so a figure of 18 means a resolution of 1800 lpph.

The image left was taken with the Pentax *istDL using the 18-55mm DA at 35mm f8; the original JPEG measured 2.04MB. Resolving 1500 to 1550 lpph, the DL scores averagely for a 6 Megapixel D-SLR.


Pentax *istDL
Canon EOS-350D
1500 lpph, 18-55mm DA at 35mm, f8, 1/90, 200 ISO
1750 lpph, 18-55mm EF-S at 35mm, f8, 1/60, 100 ISO

Konica Minolta Dynax 5D
 
Nikon D50
1550 lpph, 18-70mm DT at 35mm, f8, 1/50, 100 ISO
1650 lpph, 18-55mm DX at 35mm, f8, 1/100, 200 ISO


Pentax *istDL
Canon EOS-350D
1550 lpph, 18-55mm DA at 35mm, f8, 1/90, 200 ISO
1750 lpph, 18-55mm EF-S at 35mm, f8, 1/60, 100 ISO

Konica Minolta Dynax 5D
 
Nikon D50
1500 lpph, 18-70mm DT at 35mm, f8, 1/50, 100 ISO
1500 lpph, 18-55mm DX at 35mm, f8, 1/100, 200 ISO

Results continued...

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


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