Starting point for non-documented combination

[kiss-o-matic]

Howdy

Long story short, I want to try Rollei Retro 400s in DD-X. I don't see any times for it on filmdev.org or Massive Dev Chart, although there are some times for the older variants.

Closest I've come to is SuperPan 200 in DDX (which is the same emulsion according to the internet). 1+4 for 8.75 minutes. I believe the general rule is 20% extra time per stop, but looking at some of the other data, it doesn't always correlate. Should I try it for 10 minutes 30 seconds and go from there?

 

[dogbunny]

When my developing has takes me away from what is listed in the MDC I check a variety of Flickr posts to see if anyone has ventured where I'm looking to venture. A lot of photographers post their "recipe" in the description. At the very least it is a way to check your numbers and see if someone else has done what you are trying to do.

A quick search of Rollei Retro and DD-x did bring back a bunch of results.

db

 

[Photo_Smith]

I notice the MDC gives 9mins in Microphen, and according to ILford DDX is a liquid version of Microphen so they should be similar.

 

[kiss-o-matic]

A quick search of Rollei Retro and DD-x did bring back a bunch of results.

db

Indeed it did... I thought I had done this. I saw two recipes though. One w/o a temperature (11 minutes) and the other at 26C for 11.5 Minutes. Something to start with though. Cheers.

I notice the MDC gives 9mins in Microphen, and according to ILford DDX is a liquid version of Microphen so they should be similar.

Interesting. Will note, but even at 200 MDC has it listed at almost 9 minutes.