Re: BWIR Exposure

[peteray@xxxxxxxxxx (Peter Ray)]

Richard wrote,

>If vegetative matter
>and masonry surfaces are going to have a higher reflectance (compared to
>standard BW film) then I need to underexpose, but by how much?  0.5
>stop, 1 stop etc. obviously experimenting is the way to go but if
>anybody can provide some recommendations then I should hopefully produce
>a better output from my first roll.


Language is an imprecise tool. IMO correct exposure shouldn't be called
underexposure. Not getting enough light on the neg to be able to make the
print you want is underexposure.

It also matters whether you like IR pictures with a full range of tones or
one with strong halos and more contrast or somewhere in between.

Peter



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End of INFRARED-PHOTOGRAPHY Digest 187
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