This short port is part of the N50 port system and features an optical-glass front element and anodized aluminum construction. Different size ports are available to support a wide variety of lenses and housing types. Port extensions or adapters may be necessary for some ports and housings.
The N50 Short Port offers precise placement of wide lenses very close to the port's front element at its widest angle zoom position. Zoom through is not available with this port but it does offer the widest coverage possible with minimal vignetting for wide angle photography.
With integrated M67 threads accessories such as the WWL-1 system can be mounted to the front of the port.
Technical Specifications
| Depth Rating | 100m |
| Port System | N50 |
| Weight | |
| Port Opening Diameter | |
| Port Diameter | |
| Body Material | Anodized Aluminum Alloy |
| Port Material | Optical-glass |
| Port Coating | Multi-layer Broad-band Anti-reflective Coating Inside |
| Port Shade Material | |
| Removable Port Shade | |
| Spare O-ring | 90143 |
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