Archived posting to the Leica Users Group, 2009/06/03

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Subject: [Leica] Why sharpen?
From: mark at rabinergroup.com (Mark Rabiner)
Date: Wed, 03 Jun 2009 03:19:37 -0400

The opposite of this:
The opposite of using a high acutance developer with film being a metaphore
for not using an anti aliasing filter would be:

Using a straight solvent developer non diluted.
Like D76 or Microdol straight.
Not 1:1 or 1:2 or 3.
And even more so if you poured it back and replenished it and constantly re
used it.
All that eating away of sliver and replating it back on your neg could be a
nice metaphore for an anti aliasing filter effect.

Compare the results of someone doing this straight replenishing thing with
an Olympus OM1 24x36mm:
To someone using a high acutance developer with an Olympus Pen F, FT, FV
half frame 18x24mm.
And you have Leica M8 against the modern digital world.

Mark William Rabiner



> From: Clive Moss <clive.moss at gmail.com>
> Reply-To: Leica Users Group <lug at leica-users.org>
> Date: Tue, 2 Jun 2009 21:17:28 -0500
> To: Leica Users Group <lug at leica-users.org>
> Subject: Re: [Leica] Why sharpen?
> 
> 1. To recover apparent sharpness after the blur of the anti-aliasing 
> filter.
> 
> 2. Same reason that one used a high-acutance developer with film. Same
> optical illusion. Brighten the dark side of the edge. Lighten the light 
> side
> of the edge. Painters have done it forever.
> --
> Clive




In reply to: Message from clive.moss at gmail.com (Clive Moss) ([Leica] Why sharpen?)