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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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  1. graham catley

    Camera crop factor

    test 2 to continue the test I cropped further in on the lock (actually 8cm wide so small bird sized) and then increased the print size to 20cm at 300 dpi as per general magazine printing requirements of a small bird these were then scaled down to 800 pix I then cropped down to the badge alone...
  2. graham catley

    Camera crop factor

    test I have been intrigued by this thread and so did some test shots; photographed a lock on the garden shed from 8m with tripod mounted 3002.8 and 1.4 converter on my 1DIIN and 40D--within seconds; JPeg highest quality on both cameras; 400ISO f5, 200th sec The out of camera images came out at...
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