Feature 1 Manual adjustment, all metal structure, optical glass multilayer MC coating. 2 500mm telephoto lens, manual focus, the closest focusing distance is 10 meters. 3 Highquality aluminum alloy body, exquisite and textured. 4 Small size design, easy to carry, fixed by lens tripod ring. 5 Wide range of uses, the lens is for T2 mount, through the standard adapter ring, can be installed for Olympus OM mount camera, used to shoot longdistance objects, such as wild animals, natural scenery, sports games, etc. 6 2X teleconverter, highquality teleconverter can enhance the telephoto function, so that the shooting focal length or magnification is increased to 2 times the original.Condition: 100% brand newItem type: Telephoto LensMaterial: Plastic + alloy + optical glassWeight: Approx. 1085g Focal length: 500mmAperture: F8-F32Focus: manual focusOptical structure: 4 elements in 4 groupsMinimum focus distance: 10M/32.8ftFront filter size: Approx. 67mm/2.6inFocus method: manual focusAnti-shake function: noneApplicable models: suitable for Olympus OM mount cameras2X teleconverter parameters:Material: plastic + aluminum alloy + optical glassCoating: MC CoatingInterface: for T2 mountMagnification: 2X Package List1 x Telephoto lens (Lens cover installed)1 x 2X teleconverter (lens cover installed)2 x Storage bag1 x Adapter ring1 x Wrench