Using Entaniya 220°, 250° and 280° Lenses
If the 5mm C-Mount ring is on the camera, remove it. Also, remove the IR-Cut filter and gasket. Add 4 or 5 of the set screws to the outside of the red mounting ring supplied with your lens. The black mounting ring that comes with the lens is for Hero4 Ribcage mods and is not required. Screw the red mount onto the camera until snug. Add a layer of Teflon tape to the barrel of the lens and thread it into the red mount. We recommend double tapping the screen to zoom in to set your focus. Once the image is perfectly sharp fix the lens in place by tightening the set screws around the perimeter. Test your focus by snapping some photos and view them at 1:1 on a computer screen.
Troubleshooting:
My footage looks pink! You need to install the supplied IR-Cut filter which prevents infra-red light from reaching the sensor. If your footage looks pink this filter is likely missing, or you are using an ‘IR corrected’ M12 lens which is designed for full spectrum & IR imaging. Most M12 lenses have the filter installed on the back but for CS, C-Mount and other lens types you will need to add it for normal use.
My C-Mount lens won’t focus!: This usually means that you simply need to add the supplied 5mm C-Mount spacer ring to the camera before adding your lens.
Dark spots in footage, especially when iris is closed down: Your image sensor or filter needs to be cleaned. Using an air puffer is usually enough to blow away any small particles that might have gotten on the sensor. A LensPen MiniPro is also a great tool for cleaning the small 1/2.3″ sensor. Also verify that there is no dust or debris on the back of the lens.
Images are blurry on one side with M12’s: Likely your lens is not perfectly aligned with the image sensor. Some lenses have looser thread engagement than others which may cause a very slight tilt. Try adding a layer of Teflon tape to the lens barrel before adding it to the adapter ring as outlined in the tips. Also make sure that the image sensor was properly aligned during the conversion.
When I shoot footage for 360° video, the image circle keeps moving around: When shooting content from circular fisheye lenses for stitching in 360° video software, make sure the Flowstate stabilization feature is turned off in post.
The screen is small, how do I focus?: Double tap the screen to zoom in for more accurate focus. You can also use the Insta360 smartphone app for a larger view of the action.
NOTE: We’ve done our best to accommodate the vast majority of M12, CS and C-Mount lenses on the market, however there will be some designs that aren’t compatible. M12 lenses that are extremely short, have odd shaped barrels or short threads may not work. The lenses at www.back-bone.ca have their compatibility clearly marked. When buying M12 lenses elsewhere look for 1/2.3” or 1/2” lenses that have an IR-cut filter built in for normal color. If you want to perform full spectrum or infra-red imaging look for ‘IR-corrected’ lenses. We recommend 1/2”, 1/1.8” or 2/3” C-Mount lenses with high resolution ‘megapixel’ optics.