Re[2]: LCD Black Level adjustment slider? [Controls on CRT and TFT]
Re[2]: LCD Black Level adjustment slider? [Controls on CRT and TFT]
- Subject: Re[2]: LCD Black Level adjustment slider? [Controls on CRT and TFT]
- From: Peter Karp <email@hidden>
- Date: Fri, 5 Jan 2007 10:40:57 +0100
> In a message dated 1/3/07 9:06 AM, Russell Proulx wrote:
>> the difference between 0-1 RGB is more apparent on my CRT.
> That is a very tall order, to be able to see a distinction between level 0
> and level 1 in RGB.
> Sometimes I wonder if the digital workflows is making us excessively
> demanding in what we ask for, wanting things that may not be truly
> necessary.
> Meaning, is it really so horrible if we start seeing a difference at level
> 2, or even 3, instead of 1?
> Just wondering...
Good question.
Let me add another thought:
Saying that a difference between level 0 and 1 can be seen without
stating the conditions does not say anything at all and doesn't proof
if a display (or calibration) would be better or worse then another.
When you calibrate to different gamma values you'll get a different
tonal response of course -- including the shadwos. If you view the
test image in Photoshop or another colorsavvy application you'll see
the result of the target of the calibration, the characteristics of
the display and last not least the effect of the conversion from the
working space to the monitor color space. Not to forget taking care of
the surround and ambient lighting! If one wants to test the monitor
calibration you have to test outside a colorsavvy application or
assign the monitor profile to the data (which sort of "turns
colormanagement off"), btw choosing the according setting in the PS
softproof menu doesn't always work as expected.
I'm not saying that one never should do a test with colormanagement
turned on in PS. In the end that's what counts in the daily work! But
to determine if a calibration or display is "good" this is not an
adequate idea - at least not without specifying the conditions. One is
testing a mixture of different things when not taking care to specify
the conditions and to be aware which parameters have impact on the
final result. And the conclusion one might draw can be meaningless or
in the worst case wrong.
Discussing if a tonal distinction between level 0 and 1 is
good/bad/needed/visible leads fast to a discussion which or if a
specific working space is best for you/a_situation/general ... :-)
Best regards
Peter
Tip of today: "See the light" from Jeff Healey Band :-)
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