Hello all,
I was given some old dry plates and I can't seem to find any information about their ASA speed characteristics (or equivalents), nor about how I should develop them.
Here is a list of the packs, typed from the boxes:
Gevaert Process Extra Ortho O5 Antihalo 6x9
Gevaert Replica Antihalo 23 6x9
Gevaert Gevaplan 30 Panchromatic 6x9
Agfa Diapositiv Platten 8,5x8,5
Agfa Isochrom Orthocromatic 9x12
And here is a picture:
Is there someone here who has knowledge about these films, and their processing? I am fluent with large format film development, but have not developed glass negatives before.
Especially the diapositiv (colour slide) plates are interesting, I guess they use the Agfacolor process? I have an old book describing the process for 35mm film, does anyone know whether the process was same with plates?
I'm trying to find plate holders and shoot these with my Toyo 45A.
Best regards,
Timo Harjunen
Helsinki, Finland
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