Re: PHOTO-3D digest 1284

[P3D Michael Kersenbrock <michaelk@xxxxxxxxxxx>]

> Steve mentions he uses NiCds in his viewer. This is perhaps folly if one 
> does not find a suitable bulb to match as the two D cells give only 2.4 
> volts instead of 3 volts as would normal batteries. I don't used NiCds 

Aren't the bulbs (halogens anyway) rated at 2.5V?  Don't the NiCads hit
closer to the "rated" value (and doesn't this make the bulbs last much
longer)?

NiCads usually also have the characteristic of a flat voltage curve during
discharge, so one would have a more consistent color characteristic  during
usage than primary cells would -- making compensation (the blue'ing) easier
to do effectively as well.

One of Dr. T.'s transformers would be even better though..... :-)

Mike K.

P.S. - Despite what I said above, I use Alkalines because I don't have to
       remember to charge the batteries, and at PriceCostco they are relatively
       inexpensive.


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