Archived posting to the Leica Users Group, 2008/02/24

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Subject: [Leica] ORANGE MASK
From: kingfisher at halcyon.com (Larry Bullis)
Date: Sun Feb 24 17:01:30 2008
References: <200802242151.m1OLouTB095508@server1.waverley.reid.org>

I used to scan color negatives on a very ancient scanner made in the 
late '80's.  I still have it.  12x18 inches can come in handy.  I 
scanned 8x10 and 11x14 color negatives on it.

I found that I could correct for the mask very easily.  Just make a 
strip of the film without images on it - just skip as many frames as you 
need to give you enough clear film with the orange mask to go all the 
way across the glass.  At the beginning of the field, the scanner will 
stop and calibrate itself.  With the strip placed there, the calibration 
should compensate for the mask automatically.

Since I started using newer scanners I was surprised when I found this 
no longer to be necessary. I expect that it will still work if the 
scanner fails to recognize the mask and compensate by itself.

Message: 45
Date: Sun, 24 Feb 2008 15:49:54 -0600
From: "Sonny Carter" <sonc.hegr@gmail.com>
Subject: [Leica] ORANGE MASK
To: "Leica Users Group" <lug@leica-users.org>
Message-ID:
        <a3f189160802241349x436a04c4ibd241f3baea213f8@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

On 2/24/08, Kyle Cassidy <kcassidy@asc.upenn.edu> wrote:
 > >
 > >
 > > DOES ANYONE HAVE A PHOTOSHOP ACTION THAT REMOVES THE ORANGE MASK FROM
 > > FLIM?
 > >
 > > if so, i'd just digitally photograph my negs and invert them. otherwise
 > > i'd have to find someone with a flatbed and a negative whatnot. 
it's all
 > > getting so complicated.
 > >


Here is a tutorial;

http://www.computer-darkroom.com/tutorials/tutorial_6_1.htm

-- Regards, Sonny http://www.sonc.com Natchitoches, Louisiana USA