This Cavision LWA05X86B-EX1 0.5x Wide Angle Adapter Lens is a broadcast class adapter lens that's designed to work with cameras that feature a 85/86mm outside diameter on their existing lens (requires optional pressure ring), and it's also features a bayonet adapter that's compatible with Sony's PMW-EX1. The wide angle coefficient is 0.5x, which delivers a 50% wider angle than your stock lens.
This attachment provides a 50% wider angle of view than the master lens.
The optional pressure ring clamp-on connection (model CR95-85) allows internal focus lenses with an outside diameter of 85mm or 86mm to work with this attachment.
Back mount: combination EX1 Bayonet Clamp and 9586 Clamp-on Mount.
This model comes with an adapter allowing bayonet connection to the Sony PMW-EX1.