Re: related testing question

Yes, it's a very simple way of estimating the right exposure for
printing enlargements. The various densities are translated into time.
You put a negative in the enlarger, focus, stop down and all that, put
a piece of paper on the easel, then lay this "Projection Print Scale" on
the paper. Expose for one minute. Develop the paper and see which
section of the pie is properly exposed. The number printed in that
section gives you the number of seconds to expose the print. I haven't
used mine a lot, but when I have used it, I have found it to give a
fairly accurate estimate of the best exposure.
Katharine Thayer
 
Kate Mahoney wrote:
>
> I saw that recently in a shop - it was for making a one-step exposure
> test when enlarging.....I thought it looked quite good. An alternative
> to the usual test strips. It claimed to make it possible to print
> perfectly with just one test though which is a bit hopeful!
>
> Kate M
>
> -----Original Message-----
> From: owner-pinhole-discussion@spitbite.org
> [mailto:owner-pinhole-discussion@spitbite.org] On Behalf Of Murray
> Leshner
> Sent: Saturday, 9 October 2004 1:54 p.m.
> To: pinhole-discussion@spitbite.org
> Subject: [pinhole-discussion] related testing question
>
> I saw what I guess is a density step tablet of sorts today...Delta1
> might have been the mfr...it was basically a pie-chart transparency with
> segments of different density.
>
> I assumed it was for contact printing but it was
> labeled projection something, as though it would go in
> the enlarger itself. It may have been 4x5-ish. They
> had no other 4x5 accessories, only 35mm and maybe 120,
> so maybe it's for larger enough test prints to
> comfortably look at???
>
> Murray
>
>
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Received on Fri Oct 8 22:43:04 2004