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14mm f/4 lens

The Sigma dp0 Quattro is in stock at B&H Photo.

Focus Numerique has tested the Sigma dp0 Quattro (English translation) and came away stunned by the resolving power of the 14mm lens.

  • Peak sharpness is reached wide open (f/4) for most of the frame, with only the extreme corners scoring very slightly below the f/5.6 aperture. Not enough for the eye to perceive it.
  • At f/4, center resolution is only two hundredths short of the theoretical maximum for the Quattro sensor.
  • Resolution figures in the corners are lower than in central areas, but perceived sharpness remains very high wherever one looks.
  • For the best results, don’t stop down past f/8.
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