Re: Re:Stouffer wedge (was VDB is "Brownprint" process?)

Thanks, Judy- the step wedge the store quoted was the non-calibrated kind!
The 21 step from Stouffer is 10.80 on the last post.
Susan
----- Original Message -----
From: "Judy Seigel" <jseigel@panix.com>
To: <alt-photo-process-l@sask.usask.ca>
Cc: <alt-photo-process-l@usask.ca>
Sent: Thursday, February 23, 2006 11:42 AM
Subject: Re:Stouffer wedge (was VDB is "Brownprint" process?)

>
> > At 05:16 AM 2/23/06 -0800, Susan Huber wrote:
> >
> >> BTW; does one need a 21 step wedge for alternative processes and how
does
> >> one use it?
> >> I went into the store yesterday and found out the Kodak step wedge
costs
> >> $144. US and the Stouffer wedge costs $5.80 US- a big difference in
price,
> >> any difference in quality?
>
> Kodak has (or had) a less expensive step tablet, about $18 in the US. The
> $144 tablet, whatever it costs in the US, is probaably *calibrated.* That
> is, minor variations in actual density, either from batch to batch or even
> from strip to strip, occur in the making. My understanding is that
> "calibrated" step tablets have actual density of each step read &
> recorded.
>
> AFAIK this matters in rocket science (possibly).
>
> J.
Received on Fri Feb 24 07:24:36 2006