PhotoDigital.netPhoto Resources  Photo Gallery
Google
  Web PhotoDigital.net

rec.photo.digital: Re: D70 Photoshop and gray cards
Index of rec.photo.digital  Other Photo Groups

From: Chris Cox (ccox_at_email.domain.hidden)
Date: Tue May 11 2004 - 14:20:14 EDT


That depends on the colorspace you are using (it could be anywhere from
45 to 153 on commonly used colorspaces - but tends to be closer to 100
to 128).

It should show a LAB L* value close to 50% with a* and b* close to
zero, regardless of colorspace (just assuming the colorspace is close
to correct for the camera/scanner).

Chris

In article <nelv90tpnnt0mnepi5ngcehs5md6nl791f_at_4ax.com>, No Name
<no_at_mail.com> wrote:

> If you were to shoot a gray card and then bring it up in Photoshop,
> using the info pallet what you be the values of a correctly exposed
> gray card be?