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Archive 2008 · P&S video

  
 
alfarmer
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p.1 #1 · P&S video


Is there a P&S with video that doesn't so readily blow highlights?

I'm constantly getting images with those annoying vertical stripes of white and I'd really like something that didn't blow out that way. I don't mind blowing out white where it's actually white, but to blow the entire vertical strip like that doesn't make sense to me.

Thanks,
ALF





Nov 27, 2008 at 08:54 PM
Mike V
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p.1 #2 · P&S video


It's called vertical smear.





Nov 28, 2008 at 10:44 PM
Ariel Bravy
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p.1 #3 · P&S video


I believe this has to do with the fact that they use CCD-based sensors and that it's related to the way light spills over into adjacent pixels as the sensor offloads data when capturing the image.

I've noticed this with my 1D when shooting at high shutter speeds with bright highlights. The slower the shutter, the less the effect.

1/1250:

http://www.arielbravy.com/photoblog/images/20070517160613_oconnell_street.jpg


1/5000:

http://www.arielbravy.com/photoblog/images/20071022031444_drum_major_salute.jpg


Is this similar to what you're seeing ALF or is it something else?



Nov 29, 2008 at 01:24 AM
alfarmer
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p.1 #4 · P&S video


What I'm seeing is several to many 1-pixel-wide vertical strips of white the run the entire height of the image. Like viewing the image through white, light-emitting prison bars.



Nov 29, 2008 at 02:36 AM
Ariel Bravy
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p.1 #5 · P&S video


Does it happen in snapshots too?


Nov 29, 2008 at 04:43 AM
alfarmer
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p.1 #6 · P&S video


I don't recall it as much from snapshots, but that could be because I deleted them. I do see the effect on the camera's LCD too, so would presume it's anytime there's a bright light and the difference between dark & light is beyond the sensor's capacity. For example, I can always get it to happen at night with christmas tree lights.


Nov 29, 2008 at 11:53 AM





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