Re: [photo-3d] Halogen vs Florescence

[Brent Gabrielsen <sound@xxxxxxx>]

Joe,  I shoot a lot of pictures of the desert.  (Lots of brown color).  I
started noticing that the light bulb in the viewer was adding a undesirable
tint to these desert pictures.  The slides look fine when I view them
through my modified viewer, that I use with a light table when I mount
them.  (viewer is a Brumberg cut in half with light source removed)  The
table I use says it is a 5000k source designed for accurate color viewing.
My question is what is the real spectrum of Halogen bulbs in these viewers?
 Don't mean to get hung up on this but it seems important to me to have a
reference so that I can determine the type of film I want to use, etc.  In
my paying work I help set up reference sound monitoring in major recording
studios so that the recording engineers/ clients can determine what there
product will sound like in another calibrated control room or movie house.
TV also uses various test equipment to get the picture colors correct
before they send them out.  So,  I was thinking/ asking about photo color
viewing reference...  

. Brent in HOT Arizona  


At 08:28 PM 8/9/00 -0400, you wrote:
>5000K Florescence are about the best source I have found for checking
color balance when making prints from both color negs and reversals. It
should be just right for viewing Stereo slides but where are you going to
get a tube small enough. I have only found these in 4 foot lengths and
scarce at that. On a bread board viewer I have been using a small U tube
florescent. About 4 inches long and about 7 watts. I use a piece of blue
thin plastic film (obtained at craft store) to cool it down. Let me know if
you find a 5000k 4 inch U tube!
>
>Joseph Valvo
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