RE: [APML] unhypered TP density?

["Chris Schur" <cschur@cybertrails.com>]

Yes, very clear.

Chris

-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of Chuck Vaughn
Sent: Tuesday, April 23, 2002 9:26 AM
To: astro-photo@seds.org
Subject: Re: [APML] unhypered TP density?


Chris,

Actually I hyper mine to 0.6d but he's asking about unhypered unexposed TP.
That should be practically clear.

Chuck <aa6g@aa6g.org>

----------------------

> Chuck, but after hypering, a density of .25 to .3 is expected for about 4
to
> 6 minutes in D19, agree?
>
> Chris Schur
>
> Astrophotography: http://www.psiaz.com/schur/astro/index.html

-------------

>> What should the density of unhypered, unexposed TP (35mm) be when
>> developed for 9-10 minutes in D-19? I had some of my test strips checked
>> at the photo lab on a densitometer, and they were in the range 0.22-0.24.
>> This seemed quite dense for unhypered/unexposed film. Is that ok?


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