Archived posting to the Leica Users Group, 2004/01/26

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Subject: Re: [Leica] should be Tmax 3200 at 1600/was TriX at 800
From: Adam Bridge <abridge@mac.com>
Date: Mon, 26 Jan 2004 18:50:08 -0800

> The fullest tonality range is reached at a certain ISO, below or above 
> there's no shadow detail or the highs are blocked. This is essentially 
> based on the Zone System, and the 'ranges' of the film are usually 
> tested using a densitometer on the film itself. From there you then 
> adjust Film-Dev-Time-ISO to calibrate to your methods and taste.

Thank you!

AB
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Replies: Reply from Eric Welch <eric@jphotog.com> (Re: [Leica] should be Tmax 3200 at 1600/was TriX at 800)