Hi Mark,
For small objects, you can also construct a translucent paper or
plastic cone, extending out from the lens. Light the cone from the
outside with flash or light.
Tom
At 2000 May 27 - Saturday 0:06, Marc Attinasi <olympus@xxxxxxxxxxxxxxx>
spoke about *[OM] Re: photographing polished me...* saying
> Mark,
>
> I have photographed highly reflective surfaces myself with great
> success using the Olympus T10 flash with the Ring-Cross polarizer and
> my 90mm f2 Macro. The ring-cross polarizer pretty much eliminates
> reflections, although it does cut down the flash power by at least 3-4
> stops (no Kodachrome 25, I'm sorry to say!). But if you don't need too
> much depth of field and can get by at f 5.6 or f8 then it will work
> well with K200 or one of the many 100 speed E6 films.
>
> If you have access to the T10 and the ring-cross I would try that,
> otherwise you might be able to get a standard polarizer to work
> somehow using natural light. I suspect you need a lens-mounted flash
> to get decent illumination of the highly reflective surface, as you
> mentioned.
>
> Info on the T10 can be found at:
> http://members.xoom.com/_XMCM/veluwen/om-sif/flashphotogroup/t10.htm
>
> - marc
>
>
> Date: Fri, 26 May 2000 13:20:38 +1000
> From: Mark Staiger <Mark.Staiger@xxxxxxxxxxxxxxxxx>
> Subject: [OM] photographing polished metal- HELP!
>
> Dear Zuiks, I apologise this is not a zuik related
> posting but I am desperate for a solution to
> something I need to do for my PhD. I would like to
> be able to photograph/video the surface of steel
> that is highly reflective, actually
> electro-polished. The area is about 6.7 mm wide
> and
> 20 mm long, also cylindrical. Using video is very
> difficult because the surface just appears black
> as there is no light reflected back into the lens
> on account of the surface being so smooth and
> round. Can I use my oly gear to get an image of
> this surface? I can normally view the surface
> through a microscope because the light comes from
> the lens and not the side but how else can I get
> the lighting required?
>
> Any tips would be really appreciated,
>
> Mark
> Melbourne
>
>
>
>
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