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<p>[QUOTE=&quot;dougsmit, post: 987809, member: 19463&quot;]For years I was interested in infrared photography using film.&nbsp; When I got a digital camera I discovered that there is quite a difference in camera models when it come to IR ability.&nbsp; Usually the problem is many models place an IR cutoff filter in front of the sensor that makes them useless for IR photography but frees up those same wavelengths for other communications like triggering remote flash etc.&nbsp; I once had a Minolta d7i which had the filter but a slightly older model d7 that took great IR pictures.&nbsp; If interested in doing IR with your digital camera, check to see whether it works with those lengths.&nbsp; </p><p><br /></p><p>If a camera is sensitive to IR, you need a filter to stop visible light.&nbsp; These filters range from very dark red to pitch black making it impossible to see what you are shooting.&nbsp; IR has always been good in determining fakes.&nbsp; In the old days it was well known that peroxide blond hair looked very different from natural blond when shot in IR.&nbsp; Real green leaves glow brightly in IR while green painted camouflaged tanks photograph dark.&nbsp; It is a good tool.[/QUOTE]</p><p><br /></p>

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