Archived posting to the Leica Users Group, 2002/05/21

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] Re: M6 & technical pan
From: Allan Wafkowski <>
Date: Tue, 21 May 2002 05:47:56 -0400

When using Tech Pan as a continuous tone film, there is no one best EI. 
The EI will be determined by the developer it's processed in. You 
mention overexposure, but I wonder if the processed film exhibited high 
contrast too. In any case, if the film was processed correctly, and the 
only flaw was that it was overexposed, I'd ask the lab what they suggest 
the film be exposed at. Or, by extrapolation, you could use EI 50 if the 
film is going to be processed by the same lab.

I would suggest that you process the film yourself, but I don't know if 
that is possible. It's a simple matter, and you then have full control.


Simon Lamb wrote:
> I just had a roll developed by a lab and I
> exposed it at ASA25.  Just about every image on the roll is overexposed 
> by
> about one stop. Assuming the lab did not process it incorrectly (I know 
> them
> well and they take great care) is there a nominal speed rating for 
> Technical
> Pan and could I have therefore overexposed the film by a stop, or is it
> variable and one should develop it at the speed it was used?

- --
To unsubscribe, see