LAS VEGAS – A new Sigma lens, believed to be one of only two pre-production models in the world, has gone missing from the firm’s stand at CES.

Billed as the world’s first 180mm f/2.8 macro lens to boast a 1:1 magnification ratio, the prized lens was unveiled at CES on Tuesday, the opening day of the show.

Sigma staff said they were mystified when the lens, one of three lenses the firm showcased in Vegas, was nowhere to be found the next morning.

The lens it replaces, the 180mm f/3.5 EX DG macro lens, is worth hundreds of dollars.