ACT Spyron
The Spyron is a monocular alike the AN/PVS-14, but used proprietary 50 degree FOV optics from AIB. The Spyron monocular was produced by AIB and distributed by Photonis. It was sold commercially via 3 resellers. Photonis bundled Spyrons with a 3 plate manual gain Echo tubes, with no possibility to buy the housing separately.
The Spyron 50 degree FOV lenses have good distortion control, but short eye relief compared to standard AN/PVS-14. Although the Spyron accepts PVS-14 compatible optics, the 50 degree variant is not backwards compatible with other housings. The monocular also have an adjustable diopter eyepiece, manual gain adjustment knob and built in IR illumination. The device weighs 330 grams.
ACT THE-14 is the successor of the Spyron, and uses standard 40 degree FOV PVS-14 compatible optics.