Squiffy 0 Posted May 26, 2009 I've been playing around with some Lilin PIH-7030 cameras with ExView HAD sensors (old stock but previously unused). Visible light sensitivity seems good, but the IR sensitivity is really poor. A/B comparisons with cheap CMOS cameras and much older CCD cameras is quite striking. It's possible I suppose that they're from a bad batch or perhaps they're fitted with a IR cut filter on the sensor (presumably in error). Looking at the sensor there's a cyan hue to the glass cover/filter very similar to this: www.cleaningdigitalcameras.com/resources/n70-filter.jpg I'll appreciate any comments regarding this. Share this post Link to post Share on other sites
vin2install 0 Posted May 26, 2009 It seems like that camera doesn't have an mechanical ICR (Infrared Cut-Filter Removable) device therefore not making the camera sensitive the IR Lighting. The specs on that camera stated that the ICR is optional so you probably have the version without the ICR. Share this post Link to post Share on other sites
Squiffy 0 Posted May 26, 2009 The manual supplied doesn't mention any removable filter, or that it's optional. I'll take one apart tomorrow and investigate further. Share this post Link to post Share on other sites
Squiffy 0 Posted May 27, 2009 Sure enough that was the problem, removing the filter requires removing a couple of boards inside but it's simple enough to do, results are now as expected. Share this post Link to post Share on other sites
vin2install 0 Posted May 27, 2009 Just dont use the camera near any sunlight or your images will be washed out without the IR Filter. Share this post Link to post Share on other sites
