11.8mm diameter x 1mm thick. Excellent optical quality with anti-reflective coating. These replacement filters are designed to protect the image sensor in Back-Bone’s modified Hero8, 9, 10 & 11 cameras and are required for correct back-focus.
These glass filters will also protect the image sensor and help correct back focus when shooting ‘full spectrum’ (visible light + infrared) on some of our other modified cameras:
- Modified Insta360 ONE R (1/2.3″ 4K Module)