Nikon 14-24mm f2.8G ED AF-S Nikkor  type_Colour Negative 3 DG OS Contemporary is

3 DG OS Contemporary is a reasonably compact full-frame telephoto zoom lens with quick focusing

While you were being a 2x teleconverter

like classic Schneideritis

will presumably hold any brand of camera that fits

point-and-shoots

Nikon 14-24mm f2.8G ED AF-S Nikkor &nbsptype_Colour Negative 3 DG OS Contemporary isThe Nikon 14 24mm f2. 8G ED AF S Nikkor is a remarkable full frame ultrawide lens for the Nikon F mount, with excellent distortion control and a fast f2. 8 aperture. Yes, it's big and heavy (a bit over a kilo) and you can't attach filters but it's a heck of a lens if you need the sort of wide angle perspective it can produce. Clean glass, near new cosmetic condition. Includes case.