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Picasa Raw conversion weirdness

  • 11-03-2011 4:17pm
    #1
    FoxT
    Closed Accounts Posts: 4,204 ✭✭✭


    Up to now, 99% of my shots have been jpgs, am now experimenting with Raw, using Raw Therapee for processing, but still using Picasa for library mgt.

    This happened today - the photo on the left is RAW, the one on the right is jpg. These are both straight out of the camera, a 40D. Not a picasa issue IMO as Raw Therapee & Microsoft picture viewer display them like this as well. Looks like th e.jpg conversion in the 40D went a bit bananas. does anybody have any idea why? Thanks.

    rawnjpeg.jpg


Comments

  • #2
    challengemaster
    Registered Users, Registered Users 2 Posts: 16,930 ✭✭✭✭challengemaster


    Check your camera to see if there's any "mode" applied to the jpeg output, there's usually a few different profiles/modes/etc including B&W etc... looks like it had a very contrasty one set.


  • #3
    Necronomicon
    Registered Users, Registered Users 2 Posts: 11,589 ✭✭✭✭Necronomicon


    It is an issue with Picasa FoxT. I used to use Picasa to view my RAW files before I got Elements, and when you open a RAW file it automatically auto-corrects the image (I think this is what happens) and usually it comes out like a noisy mess.

    It wasn't until I got Elements that I realised the problem is with Picasa. Even now, Picasa is my default desktop image viewer, and when I open RAW files to quickly preview them before bringing bringing them over to Adobe Camera Raw, they come out horribly. Then they're perfect in ACR.


  • #4
    FoxT
    Closed Accounts Posts: 4,204 ✭✭✭FoxT


    Pic settings on the camera are OK - I took about 10 shots similar to this one & in all cases the jpegs were more contrasty than the .CR2s, (normal) but for some reason this .jpg was wayy out of whack.


  • #5
    Heebie
    Registered Users, Registered Users 2 Posts: 1,302 ✭✭✭Heebie


    That's not abnormal at all. The RAW image is exactly what the image sensor took in. The JPG has been processed by whatever processing engine is in the camera. They should look significantly different. (Unless the exposure was so perfect that the processing engine did nothing.. which is unlikely.)


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