Olympus has announced the development of two new prime lenses for the Micro Four Thirds system. The M.Zuiko Digital ED 60mm f/2.8 is a telemacro lens with a maximum reproduction ratio of 1:1. Housed in a dust- and splashproof body, the M.Zuiko Digital ED 60mm f/2.8 Macro is designed to complement the similarly rugged Olympus OM-D camera (but can, of course, also be mounted to any other Micro Four Thirds body). The M.Zuiko Digital ED 75mm f/1.8 (pictured) is an ultra-bright telephoto lens with a full-metal exterior, designed primarily for portraiture, indoor sports and low-light photography. Mock-ups of both lenses will be on display at the CP+ Photo and Camera Imaging Show in Yokohama, Japan from 9-12 February. The prices and precise launch dates will be announced later in the year.