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Re: greenhouses



At 11:44 am +0000 6/3/01, rod sage wrote:
>
>I am feeling restless waiting for spring foliage and am planning to find
>a greenhouse in which to try out some Maco 820. Can anyone tell me if a
>glass roof will cut IR? I would assume that they would like the full
>spectrum of light to come through. Should I read the light normally or
>increase exposure a bit? Thanks.
>
>Rod S.

Ordinary glass has no discernible effect on transmission of InfraRed 
light in the spectrum used for photography so use a normal light 
reading - or as you would for infrared photographs taken outside.

-- 
All the best,

              Clive   http://www.cocam.co.uk
                      Photographic Services, Filters and Equipment, Infrared FAQ
			http://www.f32.net
			Large Format Travel and Stock Photography
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