I think it is traditional at this point to mention the really good reciprocity characteristics of Fuji Acros 100. According to the data sheet ( http://www.fuji.fi/documents/13/neop...os_af3083e.pdf ) it requires no adjustment up to 120 seconds and only +1/2 a stop up to 1000 seconds, making it faster in practice than other nominally faster films. Also it is really nice film.