Circular filter, about 7.5 mm in diameter, the thickness of 0.3 mm
650 nm low pass filter, through visible light, infrared cut-off,
Suitable for the M12 small lens without filter (small conical lens can be mounted at the bottom,
It is recommended to use shadowless glue, personal DIY can use AB glue filter edges.
Note: please make sure your small area at the bottom of the lens before buying whether it’s appropriate to use this.
About colour, will look into light reddish, not meet slant blue light.
650 – nm filter can pass 420 nm to 620 nm visible light spectrum,
Stop near infrared 700 nm to 1200 nm infrared light,
This effectively prevent color from the color problem (to prevent partial pink),
Is mainly used for CCD or CMOS imaging system, the true color image can be obtained during the day, the image is clear.