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Thread: Backfocus

  1. #1

    Default Backfocus

    Hi am a newbie to DSLR photography and would like to ask how to check if the lens is backfocusing?

  2. #2
    Senior Member erictan8888's Avatar
    Join Date
    Nov 2004

    Default Re: Backfocus

    shoot on a ruler and aim at 7 cm mark....

    if 9 to 10 cm mark in focus while 7cm mark out of focus... then it means you have back focus....

    alternatively, go to the service center of your camera brand..... they will test it for you foc...
    Hope to learn from everyone here....

  3. #3

    Default Re: Backfocus

    Hi. Thanks for your reply.


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