Tasma KN-3 developing times

[Pentode]

I posted this over at PHOTRIO yesterday and haven’t gotten any bites (yet) so I figured I’d see if I had better luck here. Thanks in advance!

l just took a chance on a spool of this outdated film. It’s B&W movie stock rated at GOST 90 (ISO 100). It was cheap.

I could take a few guesses and narrow developing time down but if anyone already has experience with this film, a starting point would save me some time and some film. I keep D-76, HC-110 and Rodinal in the house, but I won’t refuse times for other developers.

The MDC doesn’t list KN-3 at all and I can’t seem to turn much up on the net.

Also note that Tasma made another film, NK-3, which was ISO 250, but this is the slower KN-3.

Thanks!

EDIT: I realize in hindsight I should have posted this in film/developing/chemistry. My apologies.

 

[Greyscale]

Better late than never, I suppose...
I rated this KN-3 at EI32, and stand developed in Rodinal 1:100 for 60 minutes 20C. I think that EI 50 or 80 and Rodinal 1:50 for 12-13 minutes will be my next try.


Nikon F3, Nikkor 50/1.4 Ai, Tasma KN-3 (1987), Rodinal 1:100 stand 60 minutes 20C, EI 32 by Mike Novak, on Flickr


Nikon F3, Nikkor 50/1.4 Ai, Tasma KN-3 (1987), Rodinal 1:100 stand 60 minutes 20C, EI 32 by Mike Novak, on Flickr


Nikon F3, Nikkor 50/1.4 Ai, Tasma KN-3 (1987), Rodinal 1:100 stand 60 minutes 20C, EI 32 by Mike Novak, on Flickr


Nikon F3, Nikkor 50/1.4 Ai, Tasma KN-3 (1987), Rodinal 1:100 stand 60 minutes 20C, EI 32 by Mike Novak, on Flickr


Nikon F3, Nikkor 50/1.4 Ai, Tasma KN-3 (1987), Rodinal 1:100 stand 60 minutes 20C, EI 32 by Mike Novak, on Flickr


Nikon F3, Nikkor 50/1.4 Ai, Tasma KN-3 (1987), Rodinal 1:100 stand 60 minutes 20C, EI 32 by Mike Novak, on Flickr


Nikon F3, Nikkor 50/1.4 Ai, Tasma KN-3 (1987), Rodinal 1:100 stand 60 minutes 20C, EI 32 by Mike Novak, on Flickr