[Leica] OT: mixing different B&W films in the same tank

[martin at jangowski.de (Martin Jangowski)]

On Tue, 18 Oct 2005, Daniel Ridings wrote:

> No, if your times, like those of the chart, are the same.
>
> Daniel
>
> On 10/18/05, Richard <richard-lists@imagecraft.com> wrote:
>> Quick :-) According to the Digitaltruth dev chart, both Tri X and HP5+ 
>> have
>> the same development time using DDX. I happen to have 2 rolls of Tri X and
>> 1 roll of HP5+. Would there be any problem putting them all in the same 
>> tank?>

Unfortunately, it depends. My times for Delta 400 and APX100 in D76H are 
identical. Unfortunately, sensitometer strips from APX100 are visibly 
different (less dense) if I develop them in the same bath with Delta 400. 
It seems that the Deltas have something that retards development of at 
least some films. I don't mix Deltas with other films any more... I'm not 
sure if TMX and HP5+ have the same problem, but I wouldn't take a chance.

Gr??e aus Hohenlohe,

        Martin Jangowski

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