Cooke Optics is expanding its factory and recruiting more staff in a bid to keep up with demand for PL glass.

The lens manufacturer is expanding its Leicester factory by 3,200 sq ft and recruiting 10 more staff.

Cooke attributed the growth to a growing order book for its recently introduced range of anamorphic lenses and demand for its Mini S4/I, 5/i and S4/i range (pictured).