Opacity of digital negative substrates, was Re: Gum a la Sam Wang

From: Ed Stander ^lt;glassact@compuserve.com>
Date: 11/23/03-10:03:42 AM Z
Message-id: <200311231103_MC3-1-5BCF-5B9D@compuserve.com>

Sandy:
  If I remember correctly, the 361T densitometer in UV mode does not read
deep into the UV, and misses the 360-380 nm range entirely. UV is not UV,
and the readings of some instruments have to be taken with a bit of silver
salt. Best - Ed Stander
Received on Sun Nov 23 10:06:19 2003

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