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Compared to...

Studio scene comparison (RAW)

For a (more) level playing field for comparison we also shot our studio scene in RAW mode with each camera and converted it using Adobe Camera RAW (version 5.4 in this case). Because Adobe Camera RAW applies different levels of sharpening to different cameras (this confirmed) we had to use the following workflow for these conversions:

  • Load RAW file into Adobe Camera RAW (Auto mode disabled)
  • Set Sharpness to 0 (all other settings default)
  • Open file to Photoshop
  • Apply a Unsharp mask: 80%, Radius 1.0, Threshold 0
  • Save as a TIFF (for cropping) and as a JPEG quality 11 for download

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). Camera settings as per previous pages.

Pentax K-x vs. Canon EOS 500D

Pentax K-x (RAW)
Canon EOS 500D (RAW)
4.3 MB JPEG (4288 x 2848)
5.1 MB JPEG (4752 x 3168)

Shooting in RAW format and processing with Adobe ACR 5.6 Beta squeezes a tiny amount of extra detail out of both cameras' output. The difference is only visible when zooming in to a 100% view though, indicating that the JPEG engines on both cameras are doing a pretty good job getting the available detail out of the RAW data. Considering the use of the 'equalized' ACR processing it does not come as a surprise that there is again not too much difference in terms of detail, colors and tonality.

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