John Duggan asked about SFX filter availability in UK - Speed Grapohic has
laready been mentioned as a source of supply.
For filters generally in UK, Denton Optics in Manchester can rarely be
beaten for stock and price. Look for them in AP small ads.
For IR filters, from experience with a DV camera, I can recommend
experimenting with a piece of developed but unexposed E6 transparency film -
opaque to visible light, but transparent to IR. It transforms the scene.
By placing it over an electronic flash tube, it could also be used to
generate invisible IR flash.
--
Piers
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