ARRI DigitalGeneral CategoryTechnicalEvf and Transvideo monitor false color doesnt match
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Author Topic: Evf and Transvideo monitor false color doesnt match  (Read 1528 times)
BAHADIR
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« on: March 30, 2011, 11:15:20 PM »
Can someone please tell me why Alexa's EVF and Monitor's False Color Exposure Check are different? I mean the colors are different, is it because of the resolution? And which one is accurate and reliable?
« Last Edit: April 26, 2011, 04:11:32 AM by BAHADIR » Logged

Thomas Wright
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« Reply #1 on: March 31, 2011, 12:47:19 AM »
Is it the monitor's False Colour or the False colour output through the MON OUT?
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Michael Borenstein
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« Reply #2 on: March 31, 2011, 10:56:25 AM »
Bahadir,

Do you mean the hues fo the color's don't match or the exposure areas don't match, ie the area that is suppose to be 17% grey on the EVF isn't on the Mon out?

Thanks in advance for the clarification.

Mike
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Michael Borenstein
Digital Service Manager, Arri Inc.

BAHADIR
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« Reply #3 on: April 11, 2011, 07:29:04 AM »
I mean EVF s false color and on board monitor's (transvıdeo) false color hues are dıfferent, like one objects color is pink on EVF and it is green on transvideo, so which one is reliable?
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Thomas Wright
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« Reply #4 on: April 12, 2011, 02:08:21 AM »
Different products could well have assigned the colours differently, as far as I know there is no false colour smpte standard.
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Michael Borenstein
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« Reply #5 on: April 15, 2011, 01:38:08 PM »

Do you mean that what is suppose to be at middle grey (represented by green) is different in each output?

Mike
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Michael Borenstein
Digital Service Manager, Arri Inc.

Guenter N.
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« Reply #6 on: April 19, 2011, 07:30:28 PM »
I would suggest to read the Transvideo monitor manual!
especially pay attention to page 35-37
found it here:
https://tips.zgc.com/tips/PDFs/Instructions/Transvideo_CineHD_Operator-Manual_evol_1.1.pdf
If you use the Transvideo internal color scheme - these treshholds can be adjusted and will be different than on ALEXA. I would turn the false color off on the monitor itself and turn the false color on in the ALEXA monitor output.
Then the colors will match.

Best,
Guenter
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Guenter Noesner
Technical Sales,
ARRI Inc. NY

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