Kodak 4168 Duplicating Film - Any experience?

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cptrios

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Hi all,
I bought a few boxes of old 4x5 film from eBay last week, and rather than go through the trouble of combining shipping, the seller just threw in another few boxes. One of those really piqued my interest: Kodak "Professional B/W Duplicating Film" (4168). Black and white reversal film that doesn't require any special processing? Sign me up!

Anyway, there's practically no useful info about this out there, and the manual sheet in the box wasn't super helpful, so I decided arbitrarily to shoot and develop it the same way I've done with Arista Ortho Litho: ISO 6, 16 minutes semi-stand in roughly 1:175 HC:110. And...I got a completely blank sheet with no density whatsoever. Not that I was expecting it to work, really.

So has anyone ever used this? I know I can't really expect it to work well as camera film, but it'd be great if it did. Unfortunately the only exposure info is "With a tungsten light source producing 3 footcandles (32.3 lux) at the exposure plane, expose for 40 seconds." I have no idea how to translate that into an understandable 'speed.' On top of that, it suggests developing in Dektol, which I don't have and am not extremely interested in buying just to try out the 10 or so sheets of this stuff I have left. Also, the film could of course just simply have gone bad. All of this adds up to leaving it in the freezer indefinitely...but it'd be lovely if someone had an idea!

Here's the sheet from the box:
IMG-1787.jpg
 

Paul Howell

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Only use I can recall is duplicating a 35mm or MF negative, on 4X5 duplicating film for retouching or making a mask for high contrast scene. I think John Shaffer discusses in his The Ansel Adams Guide Basic Techniques of Photopghry, second volume.
 

laser

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4168 is a direct dup film designed for making duplicate negatives. Try Dektol, HC-110 1:175 won't do it. It is a s-l-o-w lab film. Since it is a dupe film the design contrast is about -1.0. www.makingKODAKfilm.com
 
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