In article ,
Arny Krueger wrote:
You do need to use a reasonably accurate combination of level and time
though - like any exposure.

Not like *any* exposure. The "negative" generally is line art, thick
black over transparent film. Very, very high contrast. The "film" is
designed to be very tolerant of small exposures to light. It wants to
produce a high contrast "picture".

Oh it's not as critical as a photo - but you still need some care. I'd
have no idea how long it would need in the various flavours of sunlight we
get in the UK.

--
*If all is not lost, where the hell is it?

Dave Plowman London SW
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