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Canon XH Series HDV Camcorders
Canon XH G1S / G1 (with SDI), Canon XH A1S / A1 (without SDI).


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Old October 11th, 2007, 03:06 PM   #1
Tourist
 
Join Date: Sep 2007
Location: Edinburgh, Scotland
Posts: 3
Looking for explanation the following settings

Hi,

Tried RTFM but the manual is NFG when it comes to explaining the following terms. Can someone please explain to me in plain english what each of these settings does and how adjusting them effects the image. I want to get the most out of my XHA1 but how can I do that when I don't even know what a 'Master Pedestal' is! Please assume no prior knowledge of these terms and you would be absolutely correct!

Knee Point Adjustment
Master Pedestal
Setup Level
Coring

Thanks, Byron.
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Old October 11th, 2007, 03:27 PM   #2
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Join Date: Mar 2007
Location: Canada
Posts: 294
these explanations are grabbed from the canon

XLH1_TotalImageControl.pdf - here is a link i put up temporarily to download it
http://www.northwitchproductions.com...ageControl.pdf


Knee: This adjusts the dynamic range (knee point) at the high-brightness end (highlight area), to limit overexposure when high-brightness subjects are shot. Settings are AUTO, HIGH, MIDDLE, and LOW. When HIGH is set, overexposure tends to occur more readily, but the scenes can be shot high-key. When LOW is set, the extent of the overexposure can be limited.

Master pedestal: This adjusts the bottom portion of the Gamma curve without affecting the white portion of the Gamma curve. When the cursor is moved in the [+] direction, the dark areas of the image become brighter, and the contrast is reduced. Conversely, when it is moved in the [–] direction, these areas become darker, and the contrast is increased. This is
user-adjustable to suit the user’s personal preference. Adjustment is possible in the –9 to +9 range, only in Camera mode.

Setup level: For adjusting the overall Gamma curve up or down. When the cursor is moved in the [+] direction, the shadow areas become brighter; conversely, when it is moved in the [–] direction, the screen darkens. Adjustment is possible in the –9 to +9 range. Depending on the value set for the master pedestal, the setup level may not be able to take a negative value. In this case, adjusting the setup value within a certain value range will have no effect.

Coring: Adjusts the subtle noise components on the screen. When the cursor is moved in the [+] direction, the noise becomes less noticeable. When the cursor is moved in the [–] direction, it becomes more noticeable. Adjustment is possible in the –9 to +9 range, adjusted to suit the user’s personal preference.

trish
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