I had had the clever idea that when photographing under black light,
since most things fluoresce in the if I used a yellow filter on the
lens, it would block out a lot of the blue/violet from the light and
only let the glowey bits through. So, I tried a test with a set of
filters. In short, it may be clever idea, but it wasn't a good idea. It
didn't work:
http://www.fluidr.com/photos/ellarsee/sets/72157646460095073/
You can tell the filter color on the lens by which one isn't in the
picture, or by reading the tags. I've got photos shot with the filter
under white light, under blue gelled light, and also color balanced
either to "flash" or on an individual basis. 1963 and 1964 were shot
under black light, 64, just black light, 64 black light plus a flash.
1967-1973 were shot under black light (seems appropriate, nome sane?),
67 and 73 without a filter, the others with each with a filter.
73 shows one hazard of using a filter when shooting in black light, the
filter itself fluoresced. A problem that I ran into with my fancy water
repellant filter on my 16-50.
I hope these tests are useful to someone else who might try to do black
light photography.
Larry Colen wrote:
Today at lunch I went to the local theatrical supply. It seems that the
gel that, so far, works the best is rosco 381
https://www.rosco.com/filters/SED.cfm?titleName=R381:%20Baldassari%20Blue&imageName=../images/filters/roscolux/381.jpg
A website recommended 59, but that seems to transmit a lot more in the red:
https://www.rosco.com/filters/SED.cfm?titleName=R381:%20Baldassari%20Blue&imageName=../images/filters/roscolux/59.jpg
I've been using one of these on my speedlight for a while and it works a
treat:
http://www.gelholder.com/gelholder/
Especially since you can usually get a sample pack of the gels at a
theatrical supply for free.
--
Larry Colen [email protected] (postbox on min4est)
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