Originally posted by stevebrot (Explanation...Acros 100 is sometimes referred to as orthopanchromatic, meaning that it has extended blue light sensitivity.
I'd be interested in where you found that information. The Acros data sheet doesn't give values on blue sensitivity that I could interpret in a meaningful way from their spectral sensitivity curve except there is a drop in the relative sensitivity starting at 450nm and peaking at 500nm range which covers a lot of the blue wavelengths. But without numbers I couldn't say if that is higher than most films even with that dip.
Quote: Acros 100 has incredible reciprocity characteristics allowing exposures of several seconds without having to adjust from the meter reading.
120 seconds before adjusting 1/2 stop extra of light which appears to be a fixed, one-time adjustment but you also have the film's latitude which can suck up that 1/2 stop if you wanted to ignore it.