Inon UWL-S100 ZM80 Wide Conversion Lens
By Inon Japan | 100° Underwater Field of View | Engineered for Zoom-Type Compact Housings
Capture sweeping underwater reef vistas, giant marine life, and dramatic diver portraits with the Inon UWL-S100 ZM80 Wide Conversion Lens. Specifically designed for compact digital camera housings whose internal zoom lens causes vignetting with traditional wide wet lenses at their widest focal length, the ZM80 optics allow you to zoom in slightly to approximately 80mm equivalent focal length while maintaining a stunning **100° wide-angle view underwater**.
Constructed with high-grade optical glass lenses coated with anti-reflection multi-coatings, the UWL-S100 ZM80 minimizes flare, ghosting, and edge distortion. Its dual-threaded M52 / M67 mounting design makes it compatible with a vast selection of compact underwater camera housings from Canon, Sony, Olympus, Panasonic, and SeaLife.
The ZM80 Optical Solution for Compact Camera Zoom Housings
Many modern compact camera housings position the camera lens further back from the port glass, causing heavy dark corners (vignetting) when wide-angle wet lenses are attached. By zooming your camera lens into ~80mm (35mm equivalent), the UWL-S100 ZM80 eliminates vignetting completely while delivering crisp edge-to-edge sharpness across a 100° field of view.
Key Performance Features
- 100° Underwater Field of View: Dramatically reduces water distance between camera and subject for vibrant colors and maximum clarity.
- Optimized for Compact Housings: Engineered to eliminate vignetting on compact camera housings when zoomed in to ~80mm focal position.
- Premium Optical Glass Construction: 4 elements in 4 groups optical glass structure ensures maximum contrast and corner-to-corner sharpness.
- Anti-Reflection Multi-Coating: Reduces internal lens flare and ghosting when shooting toward sunlight or strobe light sources.
- Dome Lens Unit Compatible: Upgradeable with the optional Inon Dome Lens Unit II for UWL-S100 ZM80 to expand underwater coverage up to 150.8°.
- Dual Threaded Mount Options: Native M52 thread directly fits many housings, with optional M67 thread adapter rings available for universal housing mounting.
Technical Specifications
| Brand / Model | Inon Japan / UWL-S100 ZM80 |
| Underwater Field of View | Approx. 100° (Expandable to 150.8° with optional Dome Lens Unit II) |
| Lens Construction | 4 Elements in 4 Groups (Optical Glass with Inner Multi-Coating) |
| Mounting Thread | M52 Thread (Direct) / M67 Mount via optional step ring |
| Depth Rating | 197 feet / 60 meters |
| Body Material | Corrosion-Resistant Anodized Aluminum Alloy |
| Dimensions & Weight | Outer Diameter: 87.8 mm x Length: 41.2 mm | Weight: 236g (Air) / 135g (Underwater) |
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