RE: Reducing negative density

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From: Vincent Dobson (manitec@bellsouth.net)
Date: 01/30/03-02:01:06 PM Z


Speaking of that --- here's one for sale with an opening bid of $20. It
might take $50 to get it. I bought mine on eBay:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3003271979&category=29988

Vince Dobson
Visions In Nature
www.VisionsInNature.com

  -----Original Message-----
  From: Mike King [mailto:mikeking@cableone.net]
  Sent: Thursday, January 30, 2003 1:29 PM
  To: alt-photo-process-l@sask.usask.ca
  Subject: Re: Reducing negative density

  Traditionally? Look for an Adams retouching machine. Basically a box
with a vibrator in it so that you don't need to move your hand. And some
sort of magnifier so you can better see what you are doing. You add density
with pencil and remove it with a scalpel or needle. I picked up one for
$20.00 US (they originally sold for hundreds of dollars). It doesn't work
needs a simple repair but I've found I get better results either with Spot
Tone and Spot-Off on the print or in Photoshop (if I need to produce a
larger quantity of prints.

  darkroommike

  ----------
    ----- Original Message -----
    From: Neil Miller
    To: alt-photo-process-l@usask.ca
    Sent: Wednesday, January 29, 2003 8:38 AM
    Subject: Reducing negative density

    Hello all - after all the wonderful help I received fom this group with
a previous problem, I thought I'd try you with another. I am looking for
something to reduce negative density i.e., to reduce the thickness of the
emulsion layer on sheet film.

    I have tried jewellers rouge on the end of a cotton bud and with lighter
fluid as a medium, but have had no luck. It just seems to polish the
emulsion (after prolonged rubbing) without really removing any of the
gelatin layer - it just seems too fine. I tried metal polish, too, with
marginally better results: it bites into the emulsion, but I have to polish
for such a long time and with such a force that I lose control over the area
of emulsion which I am trying to reduce.

    I have also tried a very sharp exacto knife, but instead of "shaving
off" very thin layers it just removes all the emulsion right down to the
film base or it leaves darker "stress" marks.

    The reason I am trying to this? To subtly retouch/remove small
blemishes/cliche verre.

    Many thanks,
    Neil.

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