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  1. #1
    Join Date
    Jul 2006
    Posts
    132

    F10 - ocassional out of focuses

    I am happy with my recent weekend photos taken with F10.
    Only one of them is out of focus - not totally out, but not in focus. I can't understand why. It looks like camera focused on something very close. But there was nothing close.
    It is not my first photo looking that way. It happens for about 1 of 100 pictures.
    Until now I thought it's shake blur, or high iso, but this one is 1/320s, ISO80 photo, no warnings during taking it.
    It's not complaint, I'm just curious.
    Here' a part of the photo:
    Attached Images Attached Images  
    Last edited by sla; 09-11-2006 at 02:05 AM.
    F10

  2. #2
    Join Date
    Jul 2005
    Location
    Sydney, Australia
    Posts
    4,428
    Camera focus on something else, shaking hand, you lost concentration..... who knows?
    But 1 out of 100 is one hell of a good success rate.
    Nikon D90, D80
    Nikkor 16-85mm AF-S DX F/3.5-5.6G ED VR, Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical (IF) macro, Nikkor 50mm F/1.4D, Nikkor 50mm F/1.8D, Nikkor AF-S VR 70-300mm F/4.5-5.6G IF-ED, Sigma 105mm F/2.8 EX DG Macro ||| 2x SB800 | SB600 ||| Manfrotto 190XB

  3. #3
    Join Date
    Jul 2006
    Posts
    132
    My idea is not that 1 of 100 of my photos are not sharp. I mean, about 1 of 100 made photos are not sharp and I can't explain why it is so.
    Usually I know: I focused on wrong object, took picture in darkness without AF lamp, or night landscape with AF lamp, or so. But this picture is focused on nothing. ;-) Maybe on an invisible fly flying nearby?
    F10

  4. #4
    Join Date
    Jul 2005
    Location
    Sydney, Australia
    Posts
    4,428
    What focus setting did you use? My preference is Centre focus.
    I think it was shaking hand effect... but again it could be anything. If it only occurs now and then I wouldn't worry at all.
    Nikon D90, D80
    Nikkor 16-85mm AF-S DX F/3.5-5.6G ED VR, Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical (IF) macro, Nikkor 50mm F/1.4D, Nikkor 50mm F/1.8D, Nikkor AF-S VR 70-300mm F/4.5-5.6G IF-ED, Sigma 105mm F/2.8 EX DG Macro ||| 2x SB800 | SB600 ||| Manfrotto 190XB

  5. #5
    Join Date
    Jul 2006
    Posts
    132
    I used center focus, shutter was 1/320, so hand shake is not very probable.
    I don't worry much, but I try to understand.
    F10

  6. #6
    Join Date
    Jul 2005
    Location
    Sydney, Australia
    Posts
    4,428
    Sometimes you can't focus against very bright shiny surface. In this case that large white tarpaulin-like thing could be a suspect. It's just another guess.
    Nikon D90, D80
    Nikkor 16-85mm AF-S DX F/3.5-5.6G ED VR, Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical (IF) macro, Nikkor 50mm F/1.4D, Nikkor 50mm F/1.8D, Nikkor AF-S VR 70-300mm F/4.5-5.6G IF-ED, Sigma 105mm F/2.8 EX DG Macro ||| 2x SB800 | SB600 ||| Manfrotto 190XB

  7. #7
    Join Date
    Jul 2006
    Posts
    132
    You are probably right. That white surface looks larger than on complete photo, because I uploaded only a crop. But I think that this big white may be the reason of the problem. It is a good lesson for the future.
    Thanks for your interest, tim11.
    F10

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