Archived posting to the Leica Users Group, 1998/05/16

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Subject: Re: [Leica] Fine grain B&W
From: "Greg Achenbach" <gachenba@prodigy.net>
Date: Sat, 16 May 98 06:44:21 PDT

Hello Nathan

I am by nature an experimenter with some experience with the films you =
have asked about. If grain is your main consideration then Tech Pan is =
your film.  There is no finer grain film available, however it is very =
unforgiving in both exposure and development. Although I am careful, I =
have not been able to obtain completely consistent results with Tech Pan =
using small tanks with manual agitation and Technidol. The film tends to =
high contrast and because vigorous agitation is required with Technidol, =
it is prone to develop faint surge marks along the sproket holes. You can=
 learn how to properly control the film however it will take careful work=
 and a few ruined rolls. Good results with Leica lenses are nothing less =
than spectacular.

I have settled on APX25 as my fine grained film simply because there is =
more latitude in its use in my hands. I use XTOL as a developer, however =
there is no practical difference between XTOL and Rodinal that I can see =
either with a grain focuser or in the prints. I believe I saw a post rece=
ntly from a fellow Lugger eXTOLing this combination. There is a warning =
however if you use XTOL with APX25 and that is to use the developer full =
strength and not diluted. The film has a beautiful range of tones and its=
 grain  is very fine.

Ilford Delta 100 is a beautiful film but the grain is not as fine as APX2=
5. I have not used Ilfosol-S with it but I have used Rodinal with very =
good results. Everything is a compromise, and of course the extra speed =
with this film is a great advantage. I doubt that the grain structure dif=
ferences between these two films would really show up in a scan but I wil=
l take your word for it that it may be important. I would encourage you =
to experiment and please let us know any of your results.  Good luck.


Greg Achenbach


> Dear Luggers,
>
> I am looking for the ultimate fine-grain combination for my B&W work
> with the M6. As I am scanning the negatives for subsequent manipulation
> in Photoshop, fine grain is extremely important, as the scanning proces=
s
> exaggerates any grain. ...snip
> So far, I am considering the following combinations:
>
> 1) Agfapan APX25 developed in Rodinal
> 2) Agfapan APX25 developed in Rodinal Special
> 3) Ilford 100 Delta Pro developed in Ilfosol-S
> 4) Ilford 100 Delta Pro developed in Rodinal
> 5) Technical Pan developed in Technidol developer, rated at 25
> ...snip
> Nathan Wajsman
> Overijse, Belgium