I think what Herb said will work, but set white-balance manually
BEFORE you fit the filter. Processing the image could be tricky...
I've never tried that technique but anything can work.
However, when you are intending to do grayscale work with a digital
camera, the best option is to capture without a filter and use post-
process rendering tools to produce a monochrome rendering. You can
obtain the effect of using any traditional B&W filtration using
various techniques (like Channel Mixing, LAB separation, Calculation
Channels, etc etc). Issue 35 of the UK magazine "Digital
Photographer" (July? August? can't find the month) outlines four-five
of the 12 different B&W rendering techniques I've seen and tried. All
work well, in different circumstances.
Godfrey
On Aug 25, 2005, at 6:56 PM, Herb Chong wrote:
you have to manually set white balance to something fixed, like
daylight or something.
Herb....
----- Original Message ----- From: "Joseph Tainter"
<[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, August 25, 2005 9:48 PM
Subject: B&W On A DSLR
Let's say you shoot on a Pentax DSLR, with the intention at the
start of converting the image to grayscale. You shoot with a red
or yellow or green filter, with the final B&W image in mind. One
shoots in Raw. After converting to TIFF, then converting to
grayscale, will the effect of, say, a red filter still be present
in the image? Or will the white balance just correct for it at the
time the image is shot?
