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  1. #1
    Member LeonMars's Avatar
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    Default Help - 5D MK2 exposure oddity.

    Hi.
    On a recent Namibia safari (November) 4 of my frames (shot consecutively) came out with the left half of the frame slightly darker than the right half, with a straight line down the middle. I took a lot of shots, and these were the only ones to show the problem, and it hasn't happened since. I posted it on a Canon Facebook group and someone else said they are having the same problem with their 5D MK2. Any ideas? Can't seem to insert the image from my pc for some reason, here's a link to the Facebook post: www.facebook.com/groups/127284755212/permalink/10153920016930213/?comment_id=10153920606000213&ref=notif&notif_t=gr oup_comment&notif_id=1481780468115822

  2. #2
    Frequent Member elsahoffmann's Avatar
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    Default Re: Help - 5D MK2 exposure oddity.

    Here's the pic
    Name:  odp.jpg
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    Nudity is the most Avant Garde form of dress

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  3. #3
    Member LeonMars's Avatar
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    Default Re: Help - 5D MK2 exposure oddity.

    Thanks Elsa. Have been in touch with Vinay from Cameratek, who says it may be related to the memory card...

  4. #4
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    Default Re: Help - 5D MK2 exposure oddity.

    Quote Originally Posted by LeonMars View Post
    Thanks Elsa. Have been in touch with Vinay from Cameratek, who says it may be related to the memory card...
    Spitzkoppe!

    Me thinks the memory card is a long shot... excuse the pun.

    The memory card 'packs away' the file as it is received from the camera. The probability that the file was 'received' in that state is higher than the probability of the card changing the exposure of pixels to a certain point...

    Also:

    - Was the camera very hot when you took this shot?

    - Are the affected shots from the same batch - i.e. The same burst? (Saw what you said...)

    - Did you make changes to the camera just before you shot these?

    I would change the card but watch the camera with an eagle eye.

    HTH
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    Leo Theron
    ... see my pictures HERE

  5. #5
    Frequent Member elsahoffmann's Avatar
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    Default Re: Help - 5D MK2 exposure oddity.

    I am with Leo - but it's only an educated guess -
    not much you can do with an intermittent or seldom experienced issue.
    (unless you sell the whole lot and start over )
    Nudity is the most Avant Garde form of dress

    www.elsahoffmann.co.za
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  6. #6
    Administrator SimonDP's Avatar
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    Default Re: Help - 5D MK2 exposure oddity.

    Typical of a shutter starting to drag, due to dust, wear etc. Can be inconsistent at first, gets worse over time heightened by heat and cold extreme temps.
    Simon Du Plessis

    www.actionimage.co.za simondp@actionimage.co.za

    (I'll keep on shooting, and one of these days I'll get it right!)
    Contact me for training in Beginners, Macro, Wildlife or Sport & Action photography
    Please e-mail or PM me should you wish to have my comments on a specific image, or to comment/ask questions on my crits)

  7. #7
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    Default Re: Help - 5D MK2 exposure oddity.

    Quote Originally Posted by SimonDP View Post
    Typical of a shutter starting to drag, due to dust, wear etc. Can be inconsistent at first, gets worse over time heightened by heat and cold extreme temps.
    Simon,

    Shutter runs vertically...

    Best
    Best,

    Leo Theron
    ... see my pictures HERE

  8. #8
    Member LeonMars's Avatar
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    Default Re: Help - 5D MK2 exposure oddity.

    Thanks people.

    Indeed, advice from Cameratek is that shutter issues would cause horizontal oddities... Hoping it's not the shutter! CMOS sensor might need to be calibrated, apparently. Not sure either way myself, as my tech knowledge of the inner workings is a bit limited, but I'll keep you posted.

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