RE: Display Gamma: Factory vs calibration vs working space
RE: Display Gamma: Factory vs calibration vs working space
- Subject: RE: Display Gamma: Factory vs calibration vs working space
- From: Steve Upton <email@hidden>
- Date: Wed, 17 Nov 2004 14:36:34 -0800
At 1:23 PM -0500 11/17/04, amadou diallo wrote:
>Spoke with Eizo tech support and of course the monitor should be using the 10 bit LUT to produce banding-free gradients at any calibration gamma and/or PS work space gamma. Here's the wierd thing. If I recalibrate to a 2.0 gamma, images assigned with my PS custom grayscale work space of gamma 2.0 show no banding, but images assigned a 1.8 or 2.2 work space do exhibit some banding. Similarly, images with a custom RGB 2.0 gamma work space show no banding while ProPhoto and Adobe RGB tagged gradients show some banding.Having to match a monitor calibration gamma to a work space gamma is CRAZY and seems to me to indicate I have a faulty unit. Especially since it seems Roger and Michael are not seeing this issue with their EIZOs.
if you are actually assigning a profile then this might introduce a problem. Converting to a profile is the best way to test. Assigning a profile will setup the system to (possibly) display the image with an inappropriate gamma. This could show banding by stretching the tone scale where it is not supposed to be stretched.
how does it look when you convert to the correct profile?
Regards,
Steve
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o Steve Upton CHROMiX www.chromix.com
o (hueman) 866.CHROMiX
o email@hidden 206.985.6837
o ColorGear ColorThink ColorValet ColorSmarts ProfileCentral
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