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Re: [LUG] Linux web cams - was exeter fun day

 

Mark Jose wrote:
> On Monday 13 August 2007 22:42, Rob Beard wrote:
> 
>> Thats interesting, how did you convert them to IR?
>>
>> I'm really tempted to setup some cheap webcams as CCTV cameras in my
>> house (either that or get a couple of network IP cameras).
>>
>> Rob
> 
> My brother in law and I were messing around with a security camera which I 
> bought - it plugs into a TV card - for watching wildlife. We spent the whole 
> of one Christmas fiddling around with ideas and then he went away and ripped 
> a cheap cam apart to see what could be done.
> He documented it on his site - 
> http://www.hoagieshouse.com/IR/
> The Chicony Twinklecams are almost exactly the same inside as the cam featured 
> in his strip down. Basically, it is a simple matter of opening the cam, 
> removing the little red filter and replacing it with the developed, but 
> unexposed negative - usually found at the start of a series of negatives. On 
> my Twinklecams, I used a couple of bits and, if you cut them approximately 
> the right size, you should be able to get away without making any little rigs 
> or using glue to hold them in place. 
> The cams themselves will see in IR once converted, but you ideally need a 
> light source if you intend to play outside at night. Inside, with the lights 
> on, you will see interesting things as shown on Geoffs site, but, if you have 
> IR lights then you can mess around outside in the dark. A normal torch, with 
> a full bottle of coke held in front of it makes a very cheap (but awkward) 
> test light. 
> 
> Mark
> 

Thats really interesting.  Looks like a good quality picture too.  The 
output of my Twinklecam is a bit rough.  Seems to have lots of noise on 
the image.

Rob


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