[pure-silver] Re: what is a "work print"?
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 9 Nov 2007 14:49:45 -0800
----- Original Message -----
From: "Sauerwald Mark" <mark_sauerwald@xxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Friday, November 09, 2007 5:13 AM
Subject: [pure-silver] Re: what is a "work print"?
I mistyped when I said 'Epson' - it is the Ilford
enlarging meter that I use. It has a sensor, a knob
and three LEDs, a red 'over' led, a red 'under' led
and a green just right.
I pick a neutral part of the image - usually a face if
it is a portrait, put the meter on the easel and turn
the knob until I get the green LED. Raise the head,
then open the aperture until the Green LED comes back.
At this point the intensity of light on the easel is
the same as it was for the 8x10, and all my times
should be the same.
Its just the effect of the digital age:-) I also use
the Ilford meter. It allows exact, or at least very close,
duplication of exposure when print size is changed and also
gives one a good starting exposure without the use of test
strips. Since the meter must be used in "a shadow area which
is to have detail" there is some visual judgement needed in
using it but the learning process is not difficult. The dial
is in arbitrary units but can be calibrated in stops using
the iris of the enlarging lens or neutral density filters.
This allows using the meter over a wider range of light
levels and also allows making rough contrast measurements.
I don't know the current price of the meter but they
were around $30 US, they are probably more now but will
still be cheap.
The meter was originally intended for Ciba/Ilfochrome
printing.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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