Product Specifications (*1)
| Model | UFL-M150 ZM80 |
| Outer diameter / Length (*2) | 39.7mm / 36.8mm (1.6in / 1.4in) |
| Weight (air / underwater) | 66g / approx.41g (2.3oz / 1.4oz) |
| Lens construction | 5 elements in 4 groups |
| Focal length (air / underwater) | - / infinity (afocal system) |
| Magnification | 0.15 |
| Maximum incident view angle (air / underwater) (*3) | - / 150° |
| Body material / Finishing | Corrosion-resistant aluminum alloy / Rigid black almite |
| Glass material / Finishing | Optical glass / Both side anti-reflection coating |
| Mount thread diameter / pitch | M27 / 1.0 |
| Depth rating | 60m / 197ft |
Actual shooting distance (from lens surface) and camera's focus setting
| Shooting distance [from front edge of the lens] (*5) |
Focus position (*4) |
| 0mm | 309.8mm |
| 2.9mm | 400mm |
| 6.1mm | 500mm |
| 9.3mm | 600mm |
| 12.5mm | 700mm |
| 15.7mm | 800mm |
| 19mm | 900mm |
| 22.2mm | 1000mm |
(*1) Specification is subject to change without prior notice.
(*2) Excluding "Lock Ring"
(*3) Actual view angle (actual field of view) varies depending on zoom setting of combined camera.
(*4) Focus range / position on land (=visual distance underwater). Multiply by 1.33 for measured distance underwater.
(*5) Measured distance underwater. Divide by 1.33 for visual distance underwater.