Traditional Culture Encyclopedia - Photography and portraiture - Infrared filter of camera filter
Infrared filter of camera filter
Infrared photography tips and some available infrared lens specifications: infrared introduction: sunlight contains rich and varied rays, and of course it also contains infrared light. When sunlight is reflected from an object to our eyes, we have actually received infrared light, but our optic nerve does not respond to it. Principle of infrared photography: ordinary cameras can also receive infrared light, but ordinary negatives can't sense it. It needs to be equipped with infrared filter and special infrared film to get it.
The CCD/CMOS photosensitive elements used in digital cameras/video cameras (hereinafter referred to as cameras) can sense infrared rays. In order to ensure that normal shooting will not cause color shift due to infrared interference, camera manufacturers are equipped with ICF in front of CCD to block infrared rays and pass visible light. Contrary to ICF, the function of infrared filter is to block visible light and let infrared light pass through. A camera with night shooting function is to remove this ICF by mechanical device, so that CCD can fully receive infrared rays! There are many infrared rays in sunlight, but the visible light is stronger, which will interfere with your infrared shooting effect, so you need to add an infrared filter to filter the visible light and get a pure infrared effect; In the dark night, nature has filtered all the scenery for you, so naturally you don't need any filters. Of course, you need the help of an infrared lamp. 1, infrared sensitive imaging equipment 2, infrared filter 3, sufficient infrared rays, which can play an important role in infrared shooting in the fields of public security, archaeology, medicine and so on through the limited visible light of some substances. It should be mentioned that it is forbidden by law and morality to use infrared features to shoot against the rights and interests of others. Photography lovers should remember not to shoot infrared in public or in front of people who don't know, so as not to inadvertently cause personal injury to others and bring unnecessary trouble to themselves. translate
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