Leica Camera Ag

Alexander Martin

Sigrun Kammans

Michael Hartmann

A telephoto lens having an entrance pupil of between 80 and 110 mm includes a lens head and a focusing component. The lens head, as a first optical assembly, consists of four lens elements with a refractive power sequence that alternates in the light direction. The focusing component is a second optical assembly made of at least two lens elements and has a relative aperture of between 1:4.5 and 1:7.

Telephoto lens

Wide-angle lens comprising floating element (G2) and aperture stop (BL) comprising a group (G1) of ten lens elements with refractive power sequence arranged in a manner mirrored in sign with respect to the stop (BL), wherein lens elements having positive and negative refractive power are arranged alternately in the light direction upstream and downstream of the stop (BL) and the group (G1) is displaceable for the purpose of focusing.

Growing community of inventors

Gieβen, Germany

Alexander Martin