Developing Orwo films

[talajmente]

Hi Monochromes,

I've just bought (got ) a pack of Orwo "Fototechnischer Film" FO65 (9x12, orthochromatic, expired in jan, 88. 50 sheets)
I'm excited. I must try it, now.
But.
What is the sensitivity of it? (Yes, I know, that NP20 means 20DIN, but there's no 65DIN film in the world)
How to develop it? In what? And how long?
Heeelp, please...
And thanks again,

- L.

ps: here's the complete list of all labels on the package:
ORWO ORWO ORWO ORWO ORWO ORWO ORWO ORWO
ORWO FILM
290 (handwriting, it means: the price is HUF290)
(blue, yellow and red strips)
Fototechnischer Film
FO65
Nur bei völliger Dunkelheit oder ORWO Filter 107 öffnen!
PETP 0,10
ORWO FO 65
ortho dr 107
50 F 9 x 12 cm 739-2777 jan 88
Extra hart arbeitendes Aufnahmematerial für Strichtvorlagen
Orthochromatisch
Kühl lagern! - Keep cool!
Open only under specified safelight!
POLYESTER
Made in German Democratic Republic
ORWO
VEB FILMFABRIK WOLFEN
Stammbertieb des VEB FOTOCHEMISCHES KOMBINAT WOLFEN
ELN 14944220
TGL 33771
015 49 61
ORWO ORWO ORWO ORWO

 

[David A. Goldfarb]

Good news--It's ortho film, so you can develop it under a red safelight. Try it in your favorite developer or something relatively standard like D-76 and cook until done. It's probably pretty slow, like ISO 25.

 

[Dr.Kollig]

All I could find that the number behind the FO relates to the contrast (1-6), with 6 being the highest. Develop 2-5 min in Orwo 71. No info about speed.

Wolfram

 

[Lichtbildner]

... see: http://www.silberphotographie.de

Best Regards.

Lichtbildner