knimrod said:[quote author=Petrovski link=1210024232/15#23 date=1210706858][quote author=knimrod link=1210024232/0#0 date=1210024231]KD 150mW Baton Style Green Laser
My personal opinion is that the presence of an integral IR "filter" is much ado about not much at all. This laser probably does not have an IR filter but its design may be sufficient to keep the IR leakage to a negligible amount without a filter.
Regardless, my usual method for evaluating IR leakage using exposed camera film as a long pass filter didn't work out too well.. The laser burns through the film in seconds.
Ok. I was just curious because I like the laser and its price, but I'm reluctant to buy a powerful laser that possible has IR leakage. You suspect it's a negligible amount, maybe I'm being a bit paranoid. Is there a way to properly measure IR light? Or are using a sony handycam with "nightshot" or exposed camera film the only ways without lab equipment?