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Compared to...

Studio scene comparison (JPEG)

This is our standard studio scene comparison shot taken from exactly the same tripod position. Lighting: daylight simulation, >98% CRI. Crops are 100%. Ambient temperature was approximately 22°C (~72°F).

Nikon D3S vs. Canon EOS 1D Mark IV

Camera settings:

  • Nikon D3S: Nikkor 85mm mm F1.8 lens, Aperture Priority, ISO 200 (default base), JPEG Large/Fine, Manual WB, Default Parameters (Standard), Self-Timer (with exposure delay), ADL off
     
  • Canon EOS 1D Mark IV: Canon EF 50 mm F1.4 lens, Aperture Priority, ISO 100
    JPEG Large/Fine (quality level 10/10), Manual WB, Default Parameters (Standard), Self-Timer (with MLU), ALO disabled
Nikon D3S
Canon EOS 1D Mark IV
5.1MB JPEG (4256 x 2832)
9MB (4896 X 3264)

The benefit of the extra 4 million pixels on the sensor of the APS-H format Canon EOS 1D Mark IV is plain to see here. There is a noticeable increase in detail resolution in this scene, which is most obvious in the finest areas, like the coin emblems and the etching on the portrait in the third crop from the top. Again, the smaller sensor and shorter lens have resulted in a wider depth of field in the image from the EOS 1D Mark IV, which explains why the paperclips and the toy dog's face are better defined, being slightly closer to the camera than the majority of the scene.

On the downside, at standard JPEG settings the EOS 1D Mark IV appears to be applying a little more sharpening than might be desirable for some scenes, which partly explains the impression of higher detail. A suggestion of haloing can be seen around some of the high contrast edges in this image, particularly in the fibres on the right of our robot, in the crop second from bottom.

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Barney Britton
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