Super telephoto zoom lens series walimex pro lens mount olympus om lens speed 8 focal length 650 1 300 mm suitable for sensor type aps c construction zoom lens area of use close up photography animal photography focus manual focus af motor no internal af motor closest focusing distance 500 cm lens type aspherical lens construction groupselements 58 number of aperture blades 7 minimum aperture 16 max aperture 8 filter thread 95 mm coating