[EMAIL PROTECTED] wrote:
Converting a colour original to greyscale is a whole different ballgame, as
messing with the proportion of R, G or B has the same sort of effect as
coloured filters with monochrome film - eg the red channel looks pseudo-IR,
you can darken skies by reducing the
Just for clarification, because I was not aware of this:
1) In the case of a film scanner, if one sets the scanner driver to
black and white film, and it scans in greyscale, is there a standard
method this is accomplished?
In other words, does it only use the green channel to create the scan or
Then what happens when an image scanned in colour is desaturated in Photoshop and
printed
with colour inks. Epson do say, as you mentioned also, that by printing in this
manor gives
a smoother gradient.
By keeping the scan colour RGB and desaturating it there is more information kept
than
Alessandro Pardi wrote:
Ed,
scan guru,
I summon thee.
I know you must be very busy with release 7.5, but may I ask you (or anybody
else that happens to know the answer) what channels do you get pixels from
when media type is set to BW negative?
Thanks,
Alessandro Pardi
A good
A-ha.. Now this puts the question as to whether it really matters if one
uses a greyscale capture or makes one via Photoshop's desaturation or
conversion to greyscale then...
If Ed's method is a standard, then most scanners use averaging of the
RGB scan when they do a greyscale scan, which I
grayscale.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Arthur Entlich
Sent: Saturday, February 02, 2002 4:34 AM
To: [EMAIL PROTECTED]
Subject: [filmscanners] Re: Scanning chromogenic
Just for clarification, because I was not aware of this:
1
On Sat, 02 Feb 2002 02:54:28 -0800 Arthur Entlich ([EMAIL PROTECTED])
wrote:
If Ed's method is a standard, then most scanners use averaging of the
RGB scan when they do a greyscale scan, which I suspect is also how
Photoshop creates a greyscale mode image from RGB.
ISTR PS uses unequal
On Sat, 02 Feb 2002 02:34:19 -0800 Arthur Entlich ([EMAIL PROTECTED])
wrote:
1) In the case of a film scanner, if one sets the scanner driver to
black and white film, and it scans in greyscale, is there a standard
method this is accomplished?
I don't know, but have come across scanner s/w
On Sat, 02 Feb 2002 02:49:44 -0800 Arthur Entlich ([EMAIL PROTECTED])
wrote:
The question I was trying to answer was regarding if there was a
difference between the source being desaturated in Photoshop before
going to the printer versus taking a color scan and converting it to
Greyscale
Martin, Tony,
I've read many times (and seen with my own eyes on my Canon FS4000) that the
green channel is the one with least noise and best detail (therefore my
workflow for BW, including chromogenic, is to pick the green channel from
Vuescan raw files). I understand that keeping also R and B
Op's wrote:
Then what happens when an image scanned in colour is desaturated in Photoshop and
printed
with colour inks. Epson do say, as you mentioned also, that by printing in this
manor gives
a smoother gradient.
By keeping the scan colour RGB and desaturating it there is more
Anthony J. Terlecki wrote:
At the lab you just have to ask them to print it on black and white paper.
--
Tony Terlecki
And here lies the problem most labs don't carry Chromo BW paper and want to print on
colour
hence they can't get it right and make a sepia cast to compensate.
Rob
On Tue, 29 Jan 2002 22:33:19 -0800 Ken Durling ([EMAIL PROTECTED])
wrote:
However, nothing I do in Vuescan results in anything but a straight
greyscal image, leading me to believe that there's something I don't
understand about this film (no surprise). So where does the sepia
toning come
On Wed, 30 Jan 2002 11:28 + (GMT), you wrote:
It arises purely out of the filtration used by the lab for C41 printing,
and is not a property of the film itself, just a workaround for the fact
that it's difficult to get a neutral greyscale print on colour paper with
this film.
Thanks,
I'm not Tony, but I have a few suggestions.
Unlike color photo papers, which are sensitive to color filters and film
base color, etc, you have a LOT more control with inkjet printing.
There are two ways you can get neutral B+W out of your inkjet printer
from chromogenic films.
1) Scan it as a
On Tue, Jan 29, 2002 at 10:33:19PM -0800, Ken Durling wrote:
Hi folks -
I had never tried any of the C-41 films before, and just shot a roll
of XP-2. At the processing place I had them print it on color paper,
and the prints have that sepia tone that I associate with the type.
However,
One of the reasons these chromogenic C-41 based films were created was
so that people could get results without having to get what is now
special processing using black and white chemistry, allowing for quick
results at any lab offering color neg processing.
They have an added advantage of
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