The Lumix G 20mm f/1.7 II ASPH, which is compatible with micro four thirds cameras, comprises seven elements in five groups and features a seven-blade diaphragm.

The redesigned ‘metallic profile’ lens is built to be compact and lightweight and includes two aspherical elements to help combat distortion and chromatic aberration.

The lens is designed to produce the 35mm viewing angle equivalent of a 40mm optic.

It is due in shops on 29 July, priced £349.