[pure-silver] Re: Ilford Multigrade

Quoting Nick Zentena <zentena@xxxxxxxxxxxx>:

> On Monday 22 August 2005 07:44, Edward C. Zimmermann wrote:
> 
> >
> > Another good option are high intensity LEDs. By doing splitgrade printing
> > one does not need any fancy electronics placing its cost well under the
> > cost to get a set of Ilford Multigrade filters for my Durst.
> 
> 
>       Last year I looked at those LEDs and they still seemed expensive for 
> bigger
> 
> heads. They seemed  like a good choice when the cost per LED drops but the 
> 5watt ones were over $10 [or was it higher?] 
>

In a 35mm enlarger it seems one can get away with just two LEDs.. A blue and
a green one. 50-100 Lumens is a lot of light.. Sure your typical 75w opalized
tungsten bulb pushes out nearly 1000 but its across a broad spectral band.


>       For spilt filtering $12 will buy two 20"x24" sheets of lighting 
> filters. 

And what do your light bulbs cost? :-)

> 
> Nick


-- 
-- 
Edward C. Zimmermann, Basis Systeme netzwerk, Munich
Office Leo (R&D):
   Leopoldstrasse 53-55, D-80802 Munich,
   Federal Republic of Germany
http://www.nonmonotonic.net
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