7D preview mode noisy while scrolling up and down from LCD.


rocketatw

Senior Member
Jan 15, 2010
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Just bought a 7D few days ago, notice why i shoot at the sky, then later at the camera preview mode, i zoom in to maximum, and try to see any dust at F22.No dust, what a relief.

But i notice while at max zoom in preview mode, i notice while scrolling up and down in the LCD, i can see some noise(not so obvious) on the screen, but when i stop scrolling, or stop zooming in and out, i do not see any noise anymore on the screen. It is only while scrolling.

is it normal?
 

Last edited:
Yes, my 500D also displays such an effect.
I think its the buffering of the display.
 

Yes, my 500D also displays such an effect.
I think its the buffering of the display.

strange, why huh? called the shop, they say 5Dmk2 also have such behaviour.
 

any other 7d user experience this too.
 

is it normal?
 

It's perfectly normal. I have it on both my 500D and 7D.
The noise appears because the camera loads a much lower quality version of the image to speed up scrolling. Once it stops, the fully processed image is loaded and the noise disappears.
 

It's perfectly normal. I have it on both my 500D and 7D.
The noise appears because the camera loads a much lower quality version of the image to speed up scrolling. Once it stops, the fully processed image is loaded and the noise disappears.

yes, i understand, but i try on 40D before, no such effects, maybe lower resolution screen no such problem.