Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

My Sigma 17-70 is focusing behind the subject. Always. Why?!

  • 04-09-2014 09:48PM
    #1
    Cybercommando
    Banned (with Prison Access) Posts: 44 ✭


    Basically, if I take a photo of somebody, the lens will focus on the wall behind him, even though I have the lens directed to his nose! Why is my lens doing this? Is there any way to adjust it?

    The focus spot is set to the center.

    I'm using a canon 40d.

    Any ideas?

    So many photos ruined...


Comments

  • #2
    Nerro
    Registered Users, Registered Users 2 Posts: 393 ✭✭Nerro


    Cybercommando wrote: »
    Basically, if I take a photo of somebody, the lens will focus on the wall behind him, even though I have the lens directed to his nose! Why is my lens doing this? Is there any way to adjust it?

    The focus spot is set to the center.

    I'm using a canon 40d.

    Any ideas?

    So many photos ruined...

    Your lens back focuses, pritty common with sigmas unfortunately. Is it still under warranty? If so bring it back.
    As far as I know 40D doesn't have AF micro adjustment so there is nothing you can do yourself.


  • #3
    thebaz
    Registered Users, Registered Users 2 Posts: 13,820 ✭✭✭✭thebaz


    some people find Sigmas grand, but from my experience focus is always a bit soft - I've always lost money by trading up & buying the Nikon equivalent.


  • #4
    Cybercommando
    Banned (with Prison Access) Posts: 44 ✭Cybercommando


    Nerro wrote: »
    Your lens back focuses, pritty common with sigmas unfortunately. Is it still under warranty? If so bring it back.
    As far as I know 40D doesn't have AF micro adjustment so there is nothing you can do yourself.

    The lens is a good 5 years old so unfortunately no warranty. I don't recall this happening in the past.

    Do you think it could be repaired some how?


  • #5
    Kenny Logins
    Registered Users, Registered Users 2 Posts: 9,060 ✭✭✭Kenny Logins


    Cybercommando wrote: »
    The lens is a good 5 years old so unfortunately no warranty. I don't recall this happening in the past.

    Do you think it could be repaired some how?

    Yes. They can be calibrated.


  • #6
    Kenny Logins
    Registered Users, Registered Users 2 Posts: 9,060 ✭✭✭Kenny Logins


    Have a look here - http://www.boards.ie/vbulletin/showthread.php?t=2056873316


  • Advertisement
  • #7
    Cybercommando
    Banned (with Prison Access) Posts: 44 ✭Cybercommando


    Cool.

    So where's the cheapest place I can get it done? Is there a Sigma specialist in Cork? Or perhaps Ireland? Or even a regular shop somebody could recommend? Thanks.,


  • #8
    Kenny Logins
    Registered Users, Registered Users 2 Posts: 9,060 ✭✭✭Kenny Logins


    I think Hahnel in Cork are agents for Sigma.


  • #9
    Cybercommando
    Banned (with Prison Access) Posts: 44 ✭Cybercommando


    Just called Hahnel, they're gonna get back to me on Monday when the tech is around.

    Do regular B&M camera shops do this too?

    What about sending it to the UK?


  • #10
    dacogawa
    Registered Users, Registered Users 2 Posts: 1,854 ✭✭✭dacogawa


    Leave a post on the Hamster Clinic thread, he should be able to sort you out

    http://www.boards.ie/vbulletin/showthread.php?t=2056360566&page=35


Advertisement