suggestions for developing Image Link HQ

I got several rolls of B&W 828 filn from Film for Classics. It says it is Image Link HQ, and the asa is 50. But I've not found information on how to develop this. Right now I have D76, Rodinal, and Pyrocat MC. Any suggestions on developer and time?
Thanks, Anne

Image Link HQ is microfilm. It is high contrast to meet the requirements of microfilming. You can process it like it was Tech Pan.

If I remember correctly it's a microfilm. I've never used that but used some other microfilm and I would expect its very very contrasty and has high dmax so you probably need something very compensating.

I would try Rodinal 1+100 semi stand (an hour or so) or 8-10 minutes with standard agitation as starting point. You might also try developing it like tech pan but that's just a starting point for tests.

Thank you! From here I will use 35mm film. That way I know what it is!

I believe this was the film for which Donald Qualls formulated the "LC" and "LC+C" versions of Caffenol, wasn't it?

If I'm not mistaken, Adox ORT25 was also a "repurposed" microfilm. I had good pictorial results with it using Caffenol LC+C, and also found Diafine sort of interesting---it gave contrast that was high but not unreasonable. I would imagine two-bath developers generally would do the same thing, with exhaustion in the highlights keeping them from running away completely. Of course neither of those developers is on your list, but it's hard to beat Caffenol for ease of formulation, and it's kind of fun to be able to say "Like it? I developed it in coffee!"

-NT

That Adox ORT 25 has not the resolution typical for a microfilm. Nor does it need special chemistry.
It seems to be a product custom produced as counterpart for the Agfaortho 25.


For the Kodak Imagelink HQ there is a specialized developer for tonal development called Imagespeed by the German company Spur.