David and Richard,
Does it not also have to do with being able to discern subtleties of
shadow detail on-screen? Uncorrected CRT Gamma (as per Win / Nix /
Television) gives a very non-linear display and tends to compress the
bottom 20% to black.
Images made in systems like this tend not to have any bottom-end
information at all - it typically begins at around 20%, effectively
reducing the dynamic range - not good for print - although possibly
practical for consumer-oriented screen-based media.
Something else I occasionally wonder about though. Are todays LCD
monitors configured to mimic the poor linearity characteristics of the
old CRTs? I would guess they are, so as to be compatible with existing
media. Presumably flat screens don't have the same inherent physical
characteristics as a CRT? I'm interested to know what's done in that case.
Martin Baxter
David Glasgow wrote:
In the old days, 1.8 gave better print results - something to do with
dot gains (?). That's proper commercial printing, not the stuff we do
with desktop printers. I don't think it makes any difference now, but I
could be wrong. If not, there are no obvious obstacles to Apple
switching to 2.2.
Best Wishes,
David Glasgow
Carlton Glasgow Partnership
http://www.i-psych.co.uk
On 17 May 2006, at 7:05 am, Richard Gaskin wrote:
Why doesn't Mac use the otherwise-industry-standard gamma?
Or perhaps more appropriately now that we're in a world where Apple
ships with two-button functionality and runs on Intel, WHEN will Apple
change their default gamma?
I went out on a limb several years ago and predicted the shift to
Intel and two-button mice for Apple; I'll put myself out there again
and suggest that Apple may adopt the rest of the world's default gamma
within 24 months.
--
Richard Gaskin
Fourth World Media Corporation
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