pinholes

["Amber" <ambersexton@xxxxxxxxxxxxx>]

Date sent:      	Sat, 20 Mar 1999 20:52:12 +0100 (MET)
From:           	owner-infrared-digest@xxxxx (Infrared-Digest)
To:             	infrared-digest@xxxxx
Subject:        	Infrared-Digest V #102
Send reply to:  	infrared@xxxxx
From:           	Infrared-Digest@xxxxx

> It might be easier and cheaper to scan the 8 x 10 print at high resolution,
> say at least 300 dpi and re-touch it using Photoshop. Then you could print
> the corrected digital file or have a new negative made from that with much
> less quality loss. 

I think that is far more practical, but at the time I was told this was 
before computer became so ubiquitous
I have not yet been bitten by the pinhole bug. Could it 
> have something to do with the ph of water in certain areas?
I doubt it, because one roll in the same tank with others can be 
effected significantly while others can show no holes.  It also 
seems to run in emulsion batches
 I wonder what
> would happen if the film were developed commercially in a dip & dunk
> processor which uses nitrogen burst agitation. That seems to give much
> better development.

> Russ Rosener
> 

Nitrogen burst agitation is really great.  I am jealous of a friend who 
has a small B&W lab with these kind of tanks.  Agitation is an 
issue with any film and over agitation, and even some commonly 
used forms of agitation can have a bad effect on film.  The old half 
moon style that was recommended to me by so many photo 
teachers int he past, was discouraged when I went to MPW.  They 
said it often caused a slight density build up on the top and bottom 
of the frame and recommended a 180 degree inversion method 
once a minute for 10 seconds (12 inversions in the 10 seconds) I 
have used it ever since because It is a method that I am able to do 
very consistently.
> 


Amber
ambersexton@xxxxxxxxxxxxx
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