i found orwo np20 film in camera - how to develop it?

[nzeeman]

i recently bought zorki 4 and it had a orwo np20 film in it. it was already shoot by previous owner. i want to see those pics but i dont know how to develop it because i never saw this film. i dont even know iif its bw or color.
please help if u know anything abouut it.
thanks

 

[r-brian]

I checked on 'The Massive Development Chart' and found this listing:

http://www.digitaltruth.com/devchart.html

It is B&W. When in doubt, develop it in Diafine, non-temperature dependent. Doesn't matter at what IE it was shot at, Diafine will work.

Brian

 

[r-brian]

I just checked the link above and it takes you to the main page, not the page for Orwo films. Select Orwo films on the left and keep clicking the links to you come to the page for older Orwo films, about 3 clicks.

 

[Donald Qualls]

Orwo NP20 is probably the same as modern Efke KB100 or R100, though with older film it's often helpful to use a low-fog developer (I like HC-110 at Dilution E or G, agitation every 3rd minute, and 2 or 3 times the Dilution B time, respectively).