I had something like this that came in a "kit" with an early Oly point and shoot. It also had a marked tripod mount so you could take successive slightly overlapping shots and stitch them together. The lens was made to mount on THAT particular camera, with camera zoom probably set to WA and made wider with the aux WA lens.
Somebody was serious about it, as the camera, Manifroto tripod lens ad tripod head came in a big waterproof case with gasket, foam inset and holes for locks!
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