The two largest Superferries in the world Stena Britannica and Stena Hollandica fitted with Vellardi binoculars.

The Stena Britannica and the Stena Hollandica Superferries, the two largest Superferries in the world, measures 240 metres in length and have a capacity of 230 cars, 300 freight vehicles and 1200 passengers each.

The Stena Hollandica, was launched on 16th May 2010, sails on the Harwich to Hook of Holland route.
The Stena Britannica sister ship to the Stena Hollandica, launched on 9th October 2010 and sails from Harwich to Hook of Holland daily.