Archived posting to the Leica Users Group, 2000/11/08

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Subject: Re: [Leica] Exposing TMAX 400 vs Tri-X
From: Johnny Deadman <john@pinkheadedbug.com>
Date: Wed, 08 Nov 2000 08:21:10 -0500

on 7/11/00 10:53 pm, Peter Shier at pshier@mindspring.com wrote:

> I am using an M6 TTL 0.85 and I have noticed in past then when I shoot a
> roll of TMAX 400 followed by a roll of Tri-X in the same light, the Tri-X is
> all overexposed. I decided to test this a little more clearly by shooting a
> roll of each in the exact same conditions. I shot a stark white wall with my
> Noct at F8 using the meter reading (1/30) and then using every other shutter
> speed on the dial.
> 
> The TMAX shot at the meter is a medium gray as I expected. It is a bit
> lighter than my Kodak gray card, but I needed to hold them side by side to
> determine that. The whole series gives a range of 9 clearly distinguishable
> tones.
> 
> The Tri-X shot at the meter is nearly white! It gives a range of 8 tones.
> 
> Is this a known quality of Tri-X? It looks like I have to compensate by
> about 2 stops to get the same exposure from both films.
> 
> Thanks,
> Peter

What developer are you using?
- -- 
Johnny Deadman

http://www.pinkheadedbug.com