I use (and sell) wildlife cameras which emit IR light and capture photographs
or videos that appear black and white. Most times the mammals don't appear
disturbed at all. I have seen a few skinks and have a colleague that has
captured snakes on camera, so even though the cameras are triggered by movement
of a temperature gradient across the field of view, even cold-blooded animals
trigger them. Birds, of course, also trigger the cameras.
I'm aware of a study currently under way which seeks to summarise all current
research on the use of IR cameras with wildlife. It won't be ready for
publication until next year.
I also had the pleasure of playing with a heat-signature camera whilst filming
a documentary on the Tasmanian tiger. These cameras require no other light
source than ambient light. The image is green and black and wildlife (at least
mammals) stand out from a mile away - almost literally! It's the kind of stuff
that military use and I'm sure you're familiar with the image from mainstream
movies :)
Chris.
________________________________
From: Merrilyn Serong <>
To: Robert Inglis <>
Cc: Birding-Aus <>
Sent: Tuesday, 22 September, 2009 12:54:21 PM
Subject: Re: [Birding-Aus] Re: IR lights was Re: LED (by Mike Carter 21 Sept
2009) MARK and MIKE
Hi all,
There seems to be some confusion between Mark Carter who commented on LED
lights and Mike Carter, who does not seem to have contributed to this
discussion.
Cheers,
Merrilyn
Robert Inglis wrote:
> Rob
>
> Infra Red light would be good for actually locating creatures (the body heat
> produces infra red light I believe) but identification would be limited by
> the monochrome nature of any images produced.
> Don't know if Ultra Violet light, being at the other end of the light
> spectrum is any better or worse. Both IR and Ultra Violet are outside the
> visible light spectrum and need special devices to interpolate them so humans
> can 'see' them.
>
> Bob Inglis
>
>
>
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