This is very expired film, produced in the GDR - in this case expired in 19...
Recipes & dev times using Film ORWO NP20 80
ORWO NP20 80 in Adox Adonal 1+50
12 minutes at 20°C/68.0°F
ORWO NP20 80 at 25 in Agfa Rodinal 1:100
35 minutes at 20°C/68.0°F
Expired in September 1980 - Fired in February 2023 Devtime was lucky guess...
ORWO NP20 80 at 50 in Foma Fomadon Excel Stock
6 minutes at 21°C/69.8°F
Film was expired in 1992, shoot and developed in January 2021 :-)
ORWO NP20 80 at 64 in Caffenol-C-M Stock
12 minutes at 20°C/68.0°F
Agitation: First minute constant agitation, then every 30 s one turn. http...
ORWO NP20 80 at 64 in Caffenol-C-M (rs) Stock
12 minutes at 20°C/68.0°F
http://4.bp.blogspot.com/-fzU_2cZl0c4/UwY0nEFAXTI/AAAAAAAAAhM/Pwsuft1A774/s16...
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