> I want to know the illumination in lux of my
> retouching area,
> Mike

Hi Mike ,
My old clockwork Lunasix 3 scale agrees with Richard's calcs.
Mine's EV 3.5 @ 100  (which gives an incident reading of 1s / 3.5)

At iso100  the scale gives
EV 3 (1s/2.8)     22lux   :2 ft candle approx
EV 4 (1s/4.0 )    44lux   :4 ft candle approx

(Now where did I put my magnesium strip spool?)

Cheers

Geoff Dann
+44 (0) 7251 2873
+44 (0) 7785 755652
http:/www.geoffdann.com

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