19 May
2005
19 May
'05
3:02 p.m.
Jules Richardson wrote:
On Thu, 2005-05-19 at 22:04 +0100, Adrian Graham
wrote:
Not really - if you use a camcorder with an IR remote, and you stand in
shot with it, you can clearly see the LED winking away.
I've removed the IR filter from my Philips PWC680K webcam before, and
got some surprising results - one pair of black jeans I have shows up as
white! You can use a bit of completely black film from the end of a
roll of negatives as a very effective IR pass filter. It will block out
the visible light but you'll see near IR. The first time I did this I
wasn't entirely sure it was working, until I started to look closely at
it...
Gordon
Hi folks,
Recently I've picked up the bits of the infra-red Apricot keyboard that
Jules investigated at my place and left in bits all over one of my
sofas :)
Hey, the task was merely to see how it came apart - you were on yer own
after that point! ;)
I know CCD based video cameras can see
infra-red......
Hmm, you got me curious there... had a poke around via google; some
digital cameras seem perfectly capable of it, but you need an IR filter
over the lens (presumably you need this for a camcorder too)