Used on a recent Maldives trip ( approx. 20 dives) Still in great condition as expected, All covers and boxes still, Availible at mikes dive store for £199 + £75 for the mount, Bidding starting at Half this price, 
Now purchased a Sony so unlikely to use this, 
LENSE HAS SMALL SCRATCH - SEE PICTURE 

Compact and lightweight wide-angle lens for GoPro cameras. 

GoPro Hero cameras have a super wide angle view in normal use, but once inside the housing and in water, the coverage narrows from approximately 150 to 95 degrees. The AOI UWL-03 lens allows you to regain this angle and massively improve the results you can achieve. The UWL-03 also allows close-focus wide-angle footage by bringing the minimum focus distance to about 7cm. Normally, with the latest GoPro 10/11/12 cameras, the closest in-focus point is 60cm. On top of this, the domed shape of the lens keeps the corners sharp and reduces aberration.

The AOI UWL-03 lens has a special bayonet fitting, and an AOI lens mount is required. The QRS-02-MB1P lens mount (available separately) fits on the Gopro Housings and allows easy lens attachment and removal. The lens can be attached both on land and in water.

Please note: This is not a GoPro "dome port" and is unsuitable for half-in-half-out shots. 

Specifications:
Field of View: up to 140 degrees
- Magnification: 0.73X (underwater)
- Lens Construction: 4 Elements in 4 Groups
- Depth Rating 60 Meters
- Weight: 331g (on land), 170g (underwater)
- Dimensions: 99mm (D) X 40.3mm (H)
- Comes with front and rear lens cap, Lens lanyard, lens pouch

NOTE: This lens will only work with the AOI QRS-02-MB1P lens mount for GoPro housings.