The recent post requesting a developing time for HSI in Ilfosol-S reminded me that I haven't yet collected developing times for this film. So, if you have a time for this film that you would like to share with the world on my web site, please post it. Be sure to include developer, time, temperature, agitation method, exposure index, preferred filtration, and comments.(posted 8330 days ago)I'll start: I expose through a #25 red filter at an EI of 12 or 6 (I usually bracket) and develop in PMK for 12 minutes at 70 degrees, with 30 seconds of initial agitation and 5 seconds agitation every 30 seconds thereafter. This time is for use in a diffusion enlarger.