>NO!... the light that dooes not pass through in the given amount of time >is >absorbed as energy... probably creating an extremely small increase in core > >temperature of the filter, > Ken There was me thinking that some of it was reflected and that the restwas absorbed as mass rather than energy. Well, I'm sure my camera stuff is getting heavier over the years. Bob ___________________________________________________________ Tiscali Broadband from 14.99 with free setup! http://www.tiscali.co.uk/products/broadband/
