Canon 7D Tips – Camera Raw 5.5 adds noise to Raw Files – Part 1

Adobe’s Camera Raw 5.5 does not officially support the Canon 7D.  However, it will open the RAW files and allow you to bring them into Photoshop CS4.

I have noticed that some of the image look different then when I preview them on the Canon 7D, so I thought I would compare the Raw file in Canon Digital Photo Pro 3.7.1.1 (DPP which ships with the Canon 7D) and Adobe Camera Raw 5.5.  The test image was shot with the Canon 7D using EF-S 17-55mm f/2.8 lens, at 1600 ISO f/11.0 for 2-second exposure.  The same RAW file is used with the default settings in both programs.

I expected some differences in color processing.  What I did NOT expect was Camera Raw adds noise to the RAW files! Take a look.

cr-v-dpp1

cr-v-dpp2

cr-v-dpp4

cr-v-dpp3

You may be able to live with Camera Raw’s processing at the lower ISO.  But, for higher ISOs, you will either need to use Canon’s DPP or a noise-removal plugin like Topaz DeNoise.

5 thoughts on “Canon 7D Tips – Camera Raw 5.5 adds noise to Raw Files – Part 1

  1. It is not adding noise, it just don’t remove noise like DPP. Camera Raw samples are much more detailed than DPP samples…

  2. “zero” doesn’t mean there is no noise reduction. It could simply mean the lowest level of noise reduction.

  3. Take a look at my more recent articles comparing Adobe Camera Raw 5.5 to JPGs created in the Canon 7D at the same time. The differences are obvious especially at 3200 ISO. Adobe needs to update Camera Raw to fully interpret the data recorded in the Canon 7D Raw files.

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