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-   -   obvious Pixelation on black surfaces (https://www.dvinfo.net/forum/canon-xl1s-xl1-watchdog/1308-obvious-pixelation-black-surfaces.html)

The Shlook March 17th, 2002 08:54 PM

obvious Pixelation on black surfaces
 
Hi,

I have an XL-1 and when I playback footage, anything black has alot of noise in it. Just like a cheap 1 CCD camera filming in the dark.

Is it a setting I am missing or a problem with the camera?

I normally shoot with gain set to either 0 or +3.

Thanks in advance,
The Shlook

Ken Tanaka March 17th, 2002 11:31 PM

Without more information I would guess that your +3 gain is putting noise in the frame. The XL-1 tends to be a bit hot so many professionals use -3dB as their standard setting for most shots.

John Klein March 18th, 2002 05:52 PM

Is it a straight XL1? Or the 1S?

On the 1S, there are a lot of playful settings which can contribute. I know that with my setup, the output is sharper and more colorful but a little noisier through s-video and kind of sensitive to having the brightness set too bright.

My 1S is quite clean in the blacks. Is the rest of the pic A-OK? What about the AE compensation dial? Is that in the null position?

Chris Hurd March 18th, 2002 10:29 PM

Also make sure you're not shooting in "Green Box" (easy recording) mode. Doing so will override your gain settings; even if you've dialed in -3db, it'll automatically gain up in Green Box mode.

The Shlook March 18th, 2002 11:21 PM

Thanks guys,

Will look into it, and report back.

Cheers,
The Shlook

Don Palomaki March 19th, 2002 07:27 PM

Also, how are you viewing it? and is the noise in all-black images or mainly in dark objects in an otherwise average lit scene?


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