Quote:
Originally Posted by TheNorm
I bet 750nm filters are selling well on eBay.
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Trouble is - you end up with a very long exposure (eg ~20 seconds).
What you really need to do is have the camera modified to take out the filter that normally sits in front of the sensor to block out all infra-red. Then to take normal photos you add an IR blocking filter to the front of the lens (eg B+W 486) or to take IR photos you add one to block out visible light (eg Hoya R72).
Many people will do the conversion for you, eg:
http://www.irdigi.com/products.htm