INON GR140 ZD Wide-Angle Lens

INON GR140 ZD wide-angle lens – Semi-fisheye underwater conversion lens made of plexiglass, particularly suitable for the larger sensors of the latest-generation action cams.

Also available in the crystal version: INON GR140 Pro ZD.

The INON GR140 ZD is a semi-fisheye underwater conversion lens for action cams, designed to provide a very wide angle of view even during dives, bringing the image rendering closer to what you get on land. The result is more engaging, natural, and realistic footage, with a wide and well-enhanced scene even underwater.

Underwater, the angle of view of video cameras tends to decrease significantly. The INON GR140 ZD was developed specifically to counter this effect, delivering a wide and immersive view that makes videos more faithful, dynamic, and impactful.

For example, the maximum angle of view of the GoPro HERO13 Black is approximately 156° on land, but it narrows to around 94° when the camera is placed inside the original dive housing and taken underwater, due to the different refractive index. The INON GR140 ZD, on the other hand, provides an ultra wide semi-fisheye rendering of 140° underwater, enabling much wider and more spectacular underwater video footage even with an action cam.

Thanks to its semi-fisheye design, this lens makes it possible to capture broader scenes even at close range, where the foreground subject is enhanced while keeping the background rich and open.

Despite its compact size, the INON GR140 ZD delivers professional-level image quality, designed for users looking for refined optical performance even in lightweight and versatile setups.

Lens adapters or flip supports for mounting the lenses on Carbonarm housings are available separately.