Hello I want to get my hands on some Infrared film, there are 3-packs of Rollei infrared 400 for as low as 24$ and I thought it would be good for a start - a couple of rolls always get busted when I'm trying to learn something new. Anyway, let's get to the point. As far as I've dug into the details, if I am to use a 720 nm filter, I'll have to shoot not at ISO 400, but at ISO 12. Since there are only two processing labs in my country that can process black and white film and both of them process only films shot either at ISO 100 or ISO 400 (I know, it sounds ridiculous, don't get me started on availability of E-6), I'll have to develop it myself. I have found the chart, which states that I can dilute D-76 at 1+1 ratio and develop the roll for 9.5 minutes if I retain 20 degrees Celsius. But have any of you people developed aforementioned film? What will happen if I change dilution or temperature? Needless to say that I'm a complete zero in chemistry, so any tips? Or should I do this one by the book? Cheers M.