[680 Nm 37mm]
Product description Size: 30 mm, Colour: 760 nm. Material: high quality optical glass + double thread made of premium aluminum alloy. Box contents: 30 mm IR 760 filter 1 In which suitable light source should I use the infrared filters? 680nm for indoor use and weak shade. 720nm for indoor and low light use. 760nm for cloudy outdoor use at nightfall and indoor brightness. 850nm for indoor and weak cloudy outdoor light. 950nm for outdoor use and strong light, just like in summer. Note: Please set a custom white balance of your camera. The way you set different cameras may vary, please check your manual. The exposure time is relatively long if you use IR filters, a tripod is absolutely necessary in this situation. We also recommend that you use a cable release in case it is shaken.