Tuesday, May 27, 2014

Re: [Avid-L2] Monitor calibration

 

Resending.  I don't think this went through the first time...

On May 25, 2014, at 11:18 AM, hoplist@hillmanncarr.com wrote:

I want to understand: CMS profiles versus LUTs, the interaction of the monitors "brightness" settings with calibration, the effects of ambient light, differences between calibrating for video vs. graphics, differences between panel types, limitations of color space.

Very helpful everyone.  I already know more than I did.  Maybe you would indulge some specific questions.

Is there more than one standard to which one might calibrate an RGB monitor?  My son is a graphic artist and I am a video editor.  Should our monitors be precisely the same?  For instance, the standard white point for video is still 6500k, right?  Is this the standard for all RGB?  It is certainly not the default.

The SMTPE color space is not the same as the "RGB" colorspace.  Do I care once I am "calibrated" or am I choosing to calibrate to a specific color space?  Is this too subtle a distinction to care about?

If I use a calibration wizard, can I simply ignore the hardware's own menu adjustments?  How about the OS level color profiles?  Does a calibration override all other settings?  Some monitors have very limited controls. 

Does a calibration apply to all inputs (RGB, HDMI, DVI) or does each need to be calibrated? 

A computer monitor can be calibrated with a software wizard.  What about "video" monitors?  Can I calibrate these directly, or do I need to calibrate the external device that is driving them.  I know how to set a smote monitor to bars, but what about color calibration of non-smpte monitors?

Martin observed that monitor should have lower absolute brightness in a color correction environment.  I agree. Is this an entirely separate issue?  It seems to be.  To confuse matters even more, the "brightness" setting on monitors is, in fact, black point, and not overall brightness at all.  So how should one lower the brightness?  The only way I was able to lower the overall brightness on mine was to lower the absolute brightness of all three RGB channels directly.

Cheers,
               tod

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Posted by: hoplist@hillmanncarr.com
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