Of or relating to a camera.

Generally speaking, the CCD of most digital cameras is sensitive to infrared light, but some manufacturers have added infrared cut-off filters in front of the CCD in cameras to block infrared light, which makes these cameras less sensitive to infrared light. There is a simple way to test whether the camera is suitable for infrared photography.

Hold the infrared remote control of general household appliances and press the button of the remote control for the camera lens. At the same time, see if you can see the bright spot from the LCD or EVF of the camera. If the spot of the infrared light on the remote control is clearly visible, that is good news.

(The result of shooting the remote controller with Olympus C-2 100UZ, photographed by Steve Tang) After adding the infrared filter, the luminosity is greatly reduced. My experience is that the exposure of Olympus C-2 100UZ is set to 100, and Hoya R72 is used in normal sunny days, even if the aperture is opened to the maximum (f2.8), the shutter is closed.

(This situation seems to indicate that C-2 100UZ also uses an IR cut filter, which blocks some infrared rays).

If the camera doesn't have hand shock prevention function, it often needs a tripod! At this time, the shortcomings of R72 become advantages, because a little visible light can make up for the lack of light. With B+W 093 with opaque visible light, the situation of insufficient light is even more serious!

Infrared photography is a great boon for night owls, because the most obvious opportunity of infrared radiation energy is in the afternoon, because the whole environment absorbs a lot of heat energy after a morning of sun exposure, so you can shoot beautiful light without getting up early in the morning. Friends who want to shoot infrared rays can rest assured to sleep in the sun and bask in the ass! Because the more sunlight, the stronger the infrared radiation energy, the more obvious the effect!