Digital BW, The Print

The key item is the _gray_ card.  Kodak gray cards are not neutral; bad.
Also there have been good discussions supporting the use of a much lighter
gray for white balance in the raw converter.  The lightest gray patch on the
color checker, patch 20, is ideal.  L value ~81.  For fieldwork, there is a
product at http://www.whibal.com/ that is very neutral and durable.  If you
like finding things that cost almost nothing, find a sign shop that uses the
rigid PVC foam called Komatex, Sintra, or Celtec and get a scrap piece of
light gray, or buy it for ~$2/sq-ft.

Best regards,
John Moody

-----Original Message-----
From: DigitalBlackandWhiteThePrint@yahoogroups.com
[mailto:DigitalBlackandWhiteThePrint@yahoogroups.com]On Behalf Of Paul D.
DeRocco
Sent: Tuesday, August 23, 2005 8:37 PM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: RE: [Digital BW] Nikon vs. Canon

<snip>
I think it's probably easier just to snap a raw picture of your gray card,
under the same light as your subject, and then use the white balance
eyedropper (or equivalent tool) in your raw converter. That eliminates the
need to do anything WB-related in the camera.

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...




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