[argyllcms] Feature request (and an implied question)

  • From: Ben Goren <ben@xxxxxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Sat, 24 Jul 2010 12:10:04 -0700

spotread -a -v already shows ambient light levels in lux. Would it be possible 
to also show light levels in EV units?

The conversion (for ISO 100) is:

     EV = log2(lux / 2.5)
    lux = 2.5 * 2**EV

The implied question, of course, is, ``Does it make sense to calibrate a 
lightmeter by making it match the measurements made by Argyll with an i1 Pro in 
ambient mode?'' I can't imagine why not, but....



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