Digital BW, The Print

On 12/01/2011 04:54 PM, Mike Finley wrote:
> but in Europe our masters are trying to remove tungsten lighting from
> the options, which may make it more difficult.

Not the halogens yet. There were no normal tungsten lamps usable for 
color critical work so nothing is lost that way. The example I gave for 
the musea at 50 Lux was based on halogen lamps. At a light level that 
low you can not do color critical work but there is no alternative if 
the display conditions are like that. Above 500 Lux color critical work 
is possible but then you switch to 4000/5000 Kelvin at least.

I have yet to see LEDs that measure without spectral spikes. Good 
compact fluorescents are often better, like the True-light versions. 
Best however are Solux lamps. Here in Europe the Osram Decostar 51 Cool 
Blue 50W are a good and cheaper alternative. Specs say 4500K but I 
measure about 4000K at best, continuous spectrum though.


-- 
Met vriendelijke groeten,   Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm

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