[rollei_list] Re: OT: Monitor calibration
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Thu, 5 May 2011 00:53:58 -0700
----- Original Message -----
From: "Kenneth Frazier" <kennybod@xxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Wednesday, May 04, 2011 3:36 PM
Subject: [rollei_list] Re: OT: Monitor calibration
On May 4, 2011, at 4:46 PM, Richard Knoppow wrote:
Some notes about monitor calibration: The choice of
white balance color is very important, it should match
the
color of the light the final print is to be viewed under.
All lightin
Thanks, Richard, for the notes and info.
I attended a demo by Jay Seldin last year. He was
printing on an Epson 3880, with Canson papers, and the
ambient lighting was fluorescent. The prints were
excellent. And, he printed images that attendees brought
in with them, so there wasn't any pre-setup.
The ambient lighting issue is a bit confusing, at least
for me, because I don't know where my prints will be
viewed.
I just sold three of my b&w prints, and I know these will
be hung in a newly-redecorated home. When I saw them in
their new location, they did NOT look as I expected. Not
bad, mind you, just not what I expected.
My question, I guess, is: How do I adjust for possible
changes in ambient lighting? Or, is that not possible?
Ken
There really isn't any way, however, reflection prints
are at least illuminated by the ambient so, presumably, any
adaption made by the eye will affect both in the same way.
For motion pictures or TV the screen color is fixed so the
interpretation of whether its too much one or another color
depends on how the eye is adapted at the moment. That is the
idea behind having your work space illuminated in the same
color light as the screen. The print should be viewed in the
same light so that as your eye moves from the screen to the
resulting print it is not shifting around. Actually, there
is some shift anyway depending on the dominant colors in the
image but that is not usually important.
The only thing to beware of is the difference in the
appearance of prints made on paper with brighteners
depending on the lighting as I mentioned. The brightening
effect is from fluorescence caused by UV in the ambient
lighting. When viewed under tungsten light, which has little
UV, such prints can seem dull. Most neutral papers these
days have brighteners but those with tinted stock usually do
not. If you have any prints on old Kodabromide compare them
to a print on modern neutral white stock under fluorescent
light or daylight and then under tungsten light, you will
see what I mean. A UV bulb will show up paper with
brighteners in it. I don't know if they are used in color
print but would guess they are.
--
Richard Knoppow
Los Angeles
WB6KBL
dickburk@xxxxxxxxxxxxx
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