Re: Camera Raw
Re: Camera Raw
- Subject: Re: Camera Raw
- From: bruce fraser <email@hidden>
- Date: Tue, 25 Feb 2003 17:14:02 -0800
At 10:40 PM -0500 2/23/03, Bertho Boman wrote:
I can not yet comment on the quality of the built-in "profile" in
ACR but I will try
it shortly as soon as I get a little spare time.
There seems to be two heated sides here, but I find it disappointing
that there is
not an option for the user to chose. That would be the best of both worlds.
Some like stick-shifts and others like automatics with cars. In this case an
automatic is forced on everyone. Hopefully, a version of ACR will
be released with a
profiling option.
Bertho Boman
Bertho,
I had to wait for the go-ahead from Adobe to share this because I
wasn't sure if it was something covered by my NDA. I've now been told
it is not.
CR uses two profiles for each supported camera, one created under
D65, the other under Standard A lighting. The plug-in interpolates
between the two profiles based on the setting of the color
temperature control.
For custom profiles to work, they'd have to be built under the same
conditions, which would be difficult-to-impossible for most people.
Otherwise, the controls in CR wouldn't work properly. That's the
technical reason why it's not just a matter of the user being able to
swap in a custom profile.
Every striped-array camera I've seen responds differently to daylight
and to tungsten -- some are much better than others, and my DCS 460
is particularly bad. But I'm skeptical that any single custom profile
will produce accurate results under tungsten and daylight with all
lenses at all reasonable exposures. Certainly, most custom profiles
do not (and I'm keenly aware that all profiles aren't created equal).
The question of unit-to-unit variation in different camera models is
a real one, and I don't have any answers. What I can say is that CR
worked better than any custom profiling solution I used on the two
cameras I used to test it -- the DCS 460 and a Canon 1Ds. I'm not
saying that CR will always provide better results than a custom
profile, but I suspect that it will in the majority of cases.
Bruce
--
email@hidden
_______________________________________________
colorsync-users mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/colorsync-users
Do not post admin requests to the list. They will be ignored.