This fisheye lens is for Gopro hero3 , You can install this lens in your Gopro hero3/3+ 4 action camera for replacement.
Image size: 1/3.2 inch
Focal length: 1.19mm±5%
Field of View: D<185°H<-185°V<185°
Total Optical Length: 35.21mm±0.3
Back Focal Length: 5.85mm
Flange Back Length: 5.38mm
Thread Size: M12*P0.5
Optical Structure: 8G+IR
IR Cut Coating: Tave>=95% @440nm-620nm, Tave=50%@650nm±10nm
Barrel Material: Aluminium Alloy
4.35mm f/2.8 72d FOV 10MP (No Distortion) is a new that is a direct replacement for most action cameras like the GoPro Hero.On the GoPro it has similar depth of field as the stock lens and is sharp enough to capture 4k video while utilizing the original l
3.4mm f/2.8 87d HFOV 16MP for Gopro Hero 4 (Flat) from 8K LENS is a amazing wide angle lens with no ‘fisheye’ distortion. This lens is light weight at 5g and super sharp with 16MP optics. Special optics make this lens ‘rectilinear’ so there is no fisheye
This 3.37mm lens is popular because of its 99 degree DFOV wide angle of view, high resolution and no-distortion. This lens will fit Gopro Hero3 3+ 4, Yi 4K 4K+ and other S mount cameras.