Inon Dome Unit II for the Inon UWL-H100 Lenses
This takes the UWL-H100 Lens from 90 Degrees to 144.8 Degrees for true wide angle shooting.
Price: $190 or best offer
It is in excellent working order tiny ding to glass on far outside edge. So fine I doubt you can find it and does not show in photos.
Sun Shade has gone missing. If you have any issues with it I will refund your money in full, you are responsible for return shipping.
Here are galleries where any wide angle where shot with this unit.
Link to the dome for reference
Link to the lens it mates with for reference
Happy to email photos of the item. Having problems adding them to this post.