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Yan Clement

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Posts posted by Yan Clement

  1. Well Tom thank you very much... It's bad issue but like you said what can we do! Anyhow it does take crazy video too ! I'll check for the cleaning sensor thing... I look up and there is a function in the camera that is supposed to reset those red bastard ! Thank you !

     

    Yan

     

    Ok i didn't notice the first time I watched it but, i didn't watch at full rez or at full screen my bad.

     

    I now see it in the right third of the screen half way down.

     

    No that's not normal, at the worst case it could be a dead pixel, in that case refer to your warranty.

     

    Try giving the sensor a clean, it could be just some dirt or dust, both using the camera self clean, and failing that get a sensor cleaning kit and give it a clean. make sure you read up on how to do this properly or you could damage the sensor.

     

    I don't know if the camera has a black balance feature but run that too see if that makes a difference.

     

    also I seen damage to sensor from lasers, though the tend to take out several pixels at a time, though i'm no suggesting this is the cause, pixels do just die sometimes but just useful to know when your in a night club etc. we lost a red sensor to a laser the damage, we knew the about it at the time but the powers at be chose to risk it. It tends to look like a dotted line across in the path the laser hit the sensor (its dotted because the laser swtiches on and off at a high frequency)

     

    I hope that is of some help

  2. well thank you !!

     

    How'about pixel... There one pixel that show up in red ? Is this normal too ?

     

     

    Your problem is that you have a 5D and are using it shoot video and expecting it to be perfect.

     

    Sorry.

     

    **Just to add. Flash always cause this kind of problem on cameras that have rolling shutters. There's nothing wrong with your camera.

     

    jb

  3. Ya I did some test with flashing light tungsten but it's when flash are strinking... Did you shoot with flash poping in the show you filmed ? The problem look like if the refreshing time of the cmos is not fast enought .. and you see that the image is taken interlaced ?

     

     

     

    Hi -

     

    It's hard to tell whats going on in the image. Have you put it through any other tests? Maybe some simple tungsten lighting effects flashing a pup on and off and see if it is a similar degradation of the image. . We shot some concert stuff at Falls Festival of the 5d & 7d with pretty full on lighting effects and didn't see any of the problems you have here.

     

    Regards, James

  4. Hello !

     

    There was this fashion show going on close to my house and decided to test my new 5D canon mark II video capabilities... and discover huge rolling shutter or shutter speed problem when other people in the crowd uses flash for picture !? Don't know what it is ?

     

    1. Rollling shutter

     

    2. cmos refreshing speed ?

     

    3. Shutter speed ? here i was using 1/ 40

     

    4. Camera problem ?

     

    here it is on youtube.com

     

    http://www.youtube.com/watch?v=of24qSNHL9g

     

    1 / 40 T 2.8

    800 ASA

     

    Yan Clément

    yanclement@gmail.com

    514.796.6596

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