Question about Digital Cameras

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My Canon 5D sometimes has an underexposed area on the lower left corner of the image. The are is in the shape of a long triangle and it looks like something is obstructing the lens. It does this with any tipe of lens I use on it and I check it but I do not seem to find the reason for this. Can you help? Many thanks. carmen Morosan

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  • photographiq Dec 07, 2008

    My Canon 5D sometimes has an underexposed area on the lower left corner of the image. The are is in the shape of a long triangle and it looks like something is obstructing the lens. It does this with any tipe of lens I use on it and I check it but I do not seem to find the reason for this.
    Can you help?
    Unfortunately is not the battery or the lens. The camera is relatively new and it has the same simptoms with a series of lenses and working on a power grip.

  • photographiq Dec 08, 2008

    I think a service center is the solution. Nothing helped and I can bet is a CMOS issue... Thanks for all the suggestions.

  • photographiq Dec 08, 2008

    I think a service center is the solution. Nothing helped and I can bet is a CMOS issue... Thanks for all the suggestions.

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Try to tap on the sides of the camera if something is obstructing the lens it gets away and will work properly. as u said its not the lens or the batteries because they r new may be the camera has internal circuit failure.as if it is under warranty is is advisable to replace the device.

Posted on Dec 07, 2008

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Hi and welcome to FixYa,

Offhand, I would venture that the CCD, the image capturing device has a speck of dust. Of course cleaning would resolve the issue. Should this be not the case, the it is probable that the CCD has a temperature imbalance and could only be rectified with replacement.

Good luck and Thank you for using FixYa.

Posted on Dec 07, 2008

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Try first to reset the camera using the reset option on its Menu , just to make sure it not a problem with its settings....

Posted on Dec 07, 2008

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Try hard reset . Remove the batteries and insert new batteries . Sometimes this may work

Another chance is that lens is struck

* Carefully inspect around it for dirt or debris

* If you see any dirt or debris around the lens, use canned air to gently blow it away

* After removing dirt and debris, turn the camera on and off

This should work
Hope this helps .
If your problem still continues you need to take to service center .

Posted on Dec 06, 2008

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