In article <5g5djj$7om@news3.snfc21.pacbell.net>, trickett@pacbell.net.nospam
says...

>A colleague wishes to do some ultra-violet photography. The method she
>inherited is to use a quartz glass lens, a UV transmission filter, and Ilford

>panchromatic film. The snag is the method is a bit vague, and she can't affor
d
>the quartz-glass lens.
>Assuming she has a Olympus OM-4T, and standard Zuiko 50mm macro, can she use
a
>B&W or Kodak Wratten filter to block the visible, and actually get a UV image

>on the film.
>Any ideas which films are particularly UV sensitive?

Bjorn Rorslett had some good things to say about this, to which I
add an idea for cheap optics that I posted a ways back...:

Nikon and Hasselblad both make (expensive!) UV-passing quartz lenses,
as I recall, but this off-the-wall idea may be worth a try: tape a strong
close-up lens [#10?] on a bellows (no other optics), and stop it well down
(maybe f22-32) with a removable (for focusing/composing) piece of black
paper with a hole cut in it (the right size for the f22-32 f-stop ---
FL = distance between the lens and film; FL/f32=diameter of hole wanted
[for rough figuring]). [Add a UV-passing filter for UV-only photographs.]
Since the CU lens has relatively little glass in it, it should pass
a fair amount of UV. Using the normally VERY soft single-element lens
at f32 or so should produce passable sharpness (and DOF! ;-) for at
least some experiments. BTW, the above is for actually shooting with
UV light, but that may not be necessary if the UV light on the subject
causes a visible-light effect - it can be photographed by normal-light
gear/film, since you see the effect by normal means...
Hope This Helps