Archived posting to the Leica Users Group, 2000/05/04

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Subject: Re: [Leica] (Xtol) Why 1+3 dilution ?
From: "Julian Thomas" <>
Date: Thu, 4 May 2000 18:43:29 +0100
References: <000701bfb5d6$52538fa0$a2b936cb@t0y8w>

> I'm told that it increases film speed by 1/3 to 1/2 a stop.  This is why I
> use it with the Neopan 1600 - to squeeze that
> extra ounce of speed out of it.  I rate the film at 1200 and develop using
> Xtol 1:3.
> Is it correct?  I'm not sure.  The Film Development Cookbook might tell
> Regards
> Gareth Jolly

hi gareth,

According to the *.PDF download from the Kodak site 1:1 'will provide
slightly greater film speed, enhanced sharpness and shadow detail, and
slightly more grain'. 1:3 'will generally provide less film speed shadow
details, with slightly enhanced sharpness and slightly more grain.' (p2)

ope this helps


Replies: Reply from Mark Rabiner <> (Re: [Leica] (Xtol) Why 1+3 dilution ?)