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Canon 1ds problem


allen_d.

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I noticed that when shooting outdoors specifically, there is a

lighter band going across the top of the frame of my 1Ds (mark I).

This occurs especially under bright sun. With an overcast sky, it's

either unnoticeable or not there. In shade or indoors, it's non-

existant. Occurs with fill flash and without. Occurs at different

ISO's as well as different appertures. It stands out particularly

when the frame is underexposed and it almost seems like the lighter

band is properly exposed versus the rest of the frame. Anyone

familiar with this or can give me a clue??<div>00DShb-25527484.jpg.c79024e169ad2f2de5009839795feccb.jpg</div>

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My first guess is lens flare due to some smear or fingerprint on the lens. The clue is that it shows in bright light only.Examine the lens for even a slight smear, viewing from the outside, not through the viewfinder. I know all too well because it happened to me on about 15-20 images for me ..my guess is that a bead of sweat on a terribly humid wedding day (we had LOTS in Ct this summer) hit my lens. I didn't pick up on it until I shot an image with a strong backlight. To deal with this on some impt images I went from PS novice to modestly proficient (with lots more to learn) in a short time...lots of long nights,reading and asking questions here. See the before and after images below.Some were more difficult than others. If this isn't the issue maybe others have another idea. Hope this helps

Dennis<div>00DSme-25530884.thumb.jpg.223ea57a258c92535bf1776913786a1e.jpg</div>

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It's a shutter problem--it's not the amount of light per se that causes it, it's the shutter

speed. This issue often only shows up at a few shutter speeds.

 

My 1dsII does it around 1/125, although not nearly as badly. Apparently the shutter is

bouncing or hanging up at the end of its travel. Sorry, it's either send it to Canon or learn

to live with it.

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  • 5 months later...

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