Kodak B10 plates

Daire Quinlan · Mar 30, 2015

Hmmm. I got no joy with this in the B&W forum, perhaps this forum might be a better bet.

I got a job lot of 6.5x9cm plates the other day. 4 boxes of a variety of Ilford plates, which I identified pretty readily including speeds (in H&D :-D ). There are 2 boxes of kodak plates though, marked 'B10' and 'photoscript' about which I can find literally zero information anywhere. Anyone any idea? Panchromatic/Ortho? Rough date? Speed? I'll probably end up throwing a few through a camera at the typical 6/12/24 or something to see but a ballpark start figure would be good.

Jerevan · Mar 30, 2015

I don't know exactly why but my instinct says 1940's judging from the package - and "backed" could well mean that it has an antihalation layer.

I'd say start with a 1/3/6/12 iso - I guess you could do a "test strip" by opening the darkslide in steps.

If "P" seems to designate panchromatic, then this could well be B as in Blue-sensiitive which might correspond with the "photoscript" - that is, high-contrast film used for some specialist purpose.

But unless you find some leaflet in the package or someone who remembers the film type ... we are a bit in the dark.

t-royce · Mar 30, 2015

With a name like 'postscript' and all the BACKED shown on the side label I would hazard a guess that they are "backed" for retouching.

You might have some luck calling attention to this to either Mark Osterman or Nick Brandreth both at GEH and on APUG

Daire Quinlan · Mar 31, 2015

Jerevan said:
If "P" seems to designate panchromatic, then this could well be B as in Blue-sensiitive which might correspond with the "photoscript" - that is, high-contrast film used for some specialist purpose.

The only bit of information that I could glean from a search was buried in a copy of the "Journal of microscopy" that I have no access to, so you could well be right, they might be some specialist process plates. I'll go with plan A then I guess and see what comes out in the wash. I've run through some of the ilford plates with some success :-D

Daire Quinlan · Mar 31, 2015

Ah actually interestingly enough this popped up in a search that I did over lunch
http://www.flightglobal.com/pdfarchive/view/1945/1945 - 1519.html

Kodak 'uniform-gamma' plates of varied sensitivity for spectography apparently. Dunno how they'll turn out if I try to shoot them in visible light. I'd say blue sensitive but little else for a start :-D

Jerevan · Mar 31, 2015

Interesting find, Daire!

In the light of this new information it is reasonable to assume the plate sensitivity being in the blue/UV spectrum - a bit like collodion wetplates.

Kodak B10 plates

Daire Quinlan

Jerevan

t-royce

Daire Quinlan

Daire Quinlan

Jerevan

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