Old polish glass plates

Marttiko

Member
Joined
Nov 10, 2015
Messages
107
Location
Tampere, Finland
Format
Multi Format
I bought a package of old 13x18cm glass plates from Poland. They were made by Foton. Box says "Plyty graficzne GP 3,0" and "
ortopanchromatyczne przeciwodblaskowe twarde". I think GP 3,0 means plate speed, but I don't know for sure. What do you suggest?

I'm going to use these in my 13x18 FKD. I'm also building a darkroom at my cottage. I got this phone number and called about an enlarger. Apparently it's an old soviet enlarger used by Finnish defence forces to enlarge aerial pictures. It's about 2 metres in height and weighs over 100 kilograms. The seller, nice and curious old man, has used it to enlarge medium format and 9x12 glass plates, but it should be good for larger formats too. And the price is 50€. He bought it for 200 finnish marks (30€) 20 years ago from an auction. I'm going to pick it next saturday. I hope it fits the darkroom... But it seems I'm going to get to enlarge these plates!
 

Nodda Duma

Member
Joined
Jan 22, 2013
Messages
2,685
Location
Batesville, Arkansas
Format
Multi Format
Start with ISO 0.5, develop in HC-110 dil B for 5 minutes (agitate on 1 min intervals) and adjust exposure from there. Reduce development time if you have really bad base fog, otherwise just adjust exposure.

You should start off processing in the dark since they are ortho panchromatic
 
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