11 Aug
2015
11 Aug
'15
3:49 a.m.
Ben Goren wrote:
...and the choice of 1.0 for the value for the peak would therefore be sorta arbitrary in the same sense that the choice of absolute illuminant level is arbitrary, so long as you get your multiplication (and any subsequent re-normalization) right, I presume?
The value at 555 is 1.0 so that the definition of a lumen being 1/683 of a watt works. Graeme.