I had a try with the Silvermax a while ago and was not at all impressed. As usual, I did a 1h stand development in Rodinal 1+100, but the film came out with quite unpleasant grain and coarse tonal values. The emulsion is said to be similar to the old Agfa APX100, but I am not really sure. APX100 worked very well with Rodinal in stand development.
I did a new attempt this week with the film and have now tried a few other developers. When pixel-peeping the scanned negatives, I feel confirmed, that Rodinal does not work very well with this film. Both ID11 (stock, 9min, 20°C) and the Silvermax developer (1+29, 11min, 20°C) give very nice negatives with smooth grain and tonal values. Using these recommended times, the negatives out of the Silvermax developer are quite a bit denser with much better tonal rendition in the shadows, but still without any blocked highlights. Increasing the time for the ID11 developer might give similar results, but from what I see right now, I would actually prefer using the Silvermax developer.
Here, the entire image developed in the Silvermax developer.
View attachment 203686
100% crop from this image (Silvermax developer):
View attachment 203690
100% crop, ID11:
View attachment 203687
100% crop, Rodinal 1+100, 1h stand development:
View attachment 203688
100% crop, Rollei Supergrain developer:
View attachment 203689
I might get to try some of the odder developers tomorrow. I have a few Spur developers and PMK here, which I would like to try.