Results 1 to 5 of 5

Thread: Focus

  1. #1

    Default Focus

    Hi.. i seems got a problem with my cam focus.... i set my focus to center(single area),but after shooting i notice the area tat was focusing seems not sharp enough. Instead other object more to the bottom left is sharp. Why is tat so, can any bro explain

  2. #2
    Senior Member zac08's Avatar
    Join Date
    Feb 2005
    Location
    East
    Posts
    11,755

    Default Re: focus

    Quote Originally Posted by rjflo23 View Post
    Hi.. i seems got a problem with my cam focus.... i set my focus to center(single area),but after shooting i notice the area tat was focusing seems not sharp enough. Instead other object more to the bottom left is sharp. Why is tat so, can any bro explain
    Could be a back-focusing issue.

    Try it on a printed piece of paper, aim for the centre using a maximum aperture you can set to, the bigger the better (i.e. f2.8)

    Then shoot a image (use a tripod to minimise hand movement) If your image shows that the portion rear to where you focused at is sharp, then it's back-focusing. If it shows the portion in front is sharp, then it's front-focusing. You may then have to bring it back to the service centre for more checks.

  3. #3

    Default Re: focus

    Quote Originally Posted by zac08 View Post
    Could be a back-focusing issue.

    Try it on a printed piece of paper, aim for the centre using a maximum aperture you can set to, the bigger the better (i.e. f2.8)

    Then shoot a image (use a tripod to minimise hand movement) If your image shows that the portion rear to where you focused at is sharp, then it's back-focusing. If it shows the portion in front is sharp, then it's front-focusing. You may then have to bring it back to the service centre for more checks.
    Printed piece of paper meaning blank white ? or somthing tat has image on it

  4. #4
    Senior Member zac08's Avatar
    Join Date
    Feb 2005
    Location
    East
    Posts
    11,755

    Default Re: focus

    Quote Originally Posted by rjflo23 View Post
    Printed piece of paper meaning blank white ? or somthing tat has image on it
    With printing....

    or else use a ruler....

  5. #5
    Member
    Join Date
    Dec 2005
    Location
    Earth
    Posts
    495

    Default Re: focus

    Canon EOS 30D w/ grip 580EX, Tamron 28-75mm f/2.8, EF-S 10-22mm
    :bsmilie:

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •