Archived posting to the Leica Users Group, 2005/06/15

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Subject: [Leica] darkroom focusing
From: lmc at interlink.es (Luis Miguel Castañeda)
Date: Wed Jun 15 22:50:58 2005
References: <BED5F641.16E0E%mark@rabinergroup.com> <ab850786e30352cf32bc929d07e8d90e@earthlink.net> <p06210214bed66ef8c60b@[10.4.1.193]> <634658c2d6070c7250a213b0dabca1b7@earthlink.net>

On 16 de jun de 2005, at 2:18, Feli wrote:

> I focus wide open,
> stop down and the grain in the print is not as sharp as I would expect 
> it to be.
> I'm using a good lens, a Schneider Rodagon 2.8/50, but I'm starting to 
> suspect that
> there may be a certain amount of focus shift at work.

IMO thats just because the the grain contrast is seen better stopping 
down than at full aperture.
I roughly focus at 2.8 and then stop down to the working aperture and 
look for the grain then, usually a slight correction is needed.




Saludos
-----------------------------------------
http://imaginarymagnitude.net/blog/


Replies: Reply from firkin at ncable.net.au (Alastair Firkin) ([Leica] Back and beginning to "recover")
In reply to: Message from mark at rabinergroup.com (Mark Rabiner) ([Leica] Re: Kodak Discontinuing B&W Paper)
Message from feli2 at earthlink.net (Feli) ([Leica] darkroom focusing)
Message from henningw at archiphoto.com (Henning Wulff) ([Leica] darkroom focusing)
Message from feli2 at earthlink.net (Feli) ([Leica] darkroom focusing)