sexydadee 0 Posted March 31, 2011 can i use IR illuminators on standard d/n cameras or do i need special IR lens filter? Thanks Share this post Link to post Share on other sites
Birdman Adam 0 Posted March 31, 2011 Nope, will work just fine. D/N cameras are designed to move the filter out of the way at night - letting in more light. Share this post Link to post Share on other sites
sexydadee 0 Posted March 31, 2011 thanks for the reply. I thought d/n cameras require special filter to "see" the IR illuminated objects. Share this post Link to post Share on other sites
NotoriousBRK 0 Posted March 31, 2011 thanks for the reply. I thought d/n cameras require special filter to "see" the IR illuminated objects. No, it's the inverse. All (most?) sensors can see the IR light. The filter is there during the day to REMOVE the IR light spectrum, otherwise you get a funny tinge to the image. At night, in B/W mode, there is no color, so the IR cut filter is removed from the image path. That lets the IR light hit the sensor and give you a brighter image in B/W mode. Share this post Link to post Share on other sites
Charles Liu 0 Posted April 7, 2011 the answer is yes. there are many kinds of IR D/N, when in sunlight, the filter mounted to remove the IR for you to get clear vision, at night, the filter unmounted for you to see image of IR. The filter could be realized physically or just a progremm on DSP. the key point is the timing of IR "light on", it must be the same moment which IR filter unmounted. Share this post Link to post Share on other sites
Sawbones 0 Posted April 7, 2011 Did that not make sense to anybody else? Share this post Link to post Share on other sites
rory 0 Posted April 7, 2011 the answer is yes. there are many kinds of IR D/N, when in sunlight, the filter mounted to remove the IR for you to get clear vision, at night, the filter unmounted for you to see image of IR. The filter could be realized physically or just a progremm on DSP. the key point is the timing of IR "light on", it must be the same moment which IR filter unmounted. Translation for Soundy and Sawbones: The answer is yes, there are many methods of how IR works with Day Night cameras. For example, the IR cut filter over the chip to block the IR during the day for a better image, while removing it at night so the camera sees the IR light in the image. The IR Cut filter can be a physical part or the camera's DSP could digitally enhance the image for night and day. It is important that the Infrared Illuminator is turned on the same time the IR Cut filter is removed. Share this post Link to post Share on other sites
