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Thread: 7D Image quality and Cropping Ability Samples

  1. #1
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    Default 7D Image quality and Cropping Ability Samples

    (Mods, pls move this to the correct forum if this is not supposed to be here).

    I posted this on another forum, thought someone could use this information here....

    I will only post links instead of images cos I know BPN has the 1 image per post policy...

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    To show the image quality and cropping ability of the 7D,here's a few crops at different % from images taken today with a 300 2.8 and 2x tele. All were hand held, exif is intact(in the jpeg's attached). (ISO 400, AI-Servo, Manual point mode). I can routinely crop an image to 50% with this camera and maintain enough detail to make a huge print. Settings applied to both the images are shown in screenshots. I usually sharpen in CS3, but for this test, I used DPP all the way.
    This camera does demand the highest quality lenses you have, that's my opinion. :-). I've thrown everything I could imagine (humans, airplanes,mammals, birds, cars, BIF,fast action) at this camera so far, and it hasn't burped, yet.

    A MA of +5 was required on this lens for me. There is a learning curve with this camera, I would recommend users to be patient and test it thoroughly before jumping to any conclusions about the 7D.

    Ok, 2 tests:

    Test Image 1:

    #1: Full frame image
    http://farm3.static.flickr.com/2695/...c5efc1db_o.jpg

    #2: 50 % RAW crop
    http://farm4.static.flickr.com/3512/...c14c7f5b_o.jpg

    #3 100% RAW crop
    http://farm3.static.flickr.com/2695/...c5efc1db_o.jpg

    #4 100% Crop after conversion to JPEG (in DPP)

    http://farm3.static.flickr.com/2488/...467ced71_o.jpg


    Test Image 2:

    #1: Full frame image
    http://farm3.static.flickr.com/2588/...7e769124_o.jpg

    #2: 50 % RAW crop

    http://farm4.static.flickr.com/3530/...22d0a6b5_o.jpg


    #3 100% RAW crop

    http://farm3.static.flickr.com/2718/...1ce380f4_o.jpg

    #4 100% Crop after conversion to JPEG (in DPP)

    http://farm4.static.flickr.com/3506/...77475a00_o.jpg

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    Last edited by Kiran Khanzode; 11-07-2009 at 11:53 PM.

  2. #2
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    Attached Images Attached Images
     
    Just for kicks, reaction from one of the test subjects after "intruder alert" alarm was sounded.

  3. #3
    Jan Fourie
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    very interesting and the images are great and sharp
    thnks for sharing
    jan

  4. #4
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    The images do appear sharp (the towhee more so than the rabbit) but it would be a better representation of IQ if the sharpness was set at zero.

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