Re: [photo-3d] Re: Medium Format Viewers (again!)

[Brian Reynolds <reynolds@xxxxxxxxx>]

Dylan the Hippy Wabbit wrote:
> Brian Reynolds wrote:
> >For lighting he used an inexpensive battery operated florescent
> >tube that he attached to the loupes with some plexiglass triangles.
> 
> How does the colour look with those?  Flourescent lamps don't have a
> full spectrum, as you probably know.
> 

I think it looks OK.  I think you can get tubes of the correct color
temperature for the little flourescent units.  By the way, besides
color temperature you need to check a flourescent lamps CRI rating.
This tells you how smooth the lamps spectrum is (and how closely it
matches the Sun's continuous spectrum).  You want a CRI greater than
90.

Your eyes will accept a wide range of color temperature as being
"correct" once you are accommodated to it.  Besides that, you're not
likely to be using a viewing light of the same color temperature as
the main lighting where ever you're sitting, so you're eyes will need
to adjust anyway.

I use one of the small light tablets with my Saturn Slide Viewer.
This is supposed to be color corrected for viewing slides.  I don't
notice any big difference between it and using the viewer in "steal
the light" mode by pointing it at a bright northern sky on a clear
day.  There is a huge difference with pointing it at a normal
incandescent lamp.

-- 
Brian Reynolds                  | "Dee Dee!  Don't touch that button!"
reynolds@xxxxxxxxx              | "Oooh!"
http://www.panix.com/~reynolds  |    -- Dexter and Dee Dee
NAR# 54438                      |       "Dexter's Laboratory"

 

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