This Fujinon TCV-85C 1.6x Telephoto Converter Lens provides a 60% magnification for the master lens on your camera. This attachment works to magnify your subject or bring distant objects in closer without distorting perspective. This teleconverter features zoom-through capabilities. Exposure No light loss, aperture remains constant. Teleconversion Magnifies the focal length of your stock lens by 60%. Compatibility This teleconverter works with the following ENG and EFP lenses with a filter diameter of 85mm: A15x8, A17x7.8, A17x9, A18x9, A19x8.7, A20x8.6, S16x7.3SD/68, S17x6.6, S18x6.7, S19x6.5, S20x6.4, A13x6.3, S12x5, S13x4.6, and A18x7.6. Type | Telephoto converter lens | Application | ENG and EFP Camera Lenses | Format | 1/2" and 2/3" chip camera lenses | Lens Mount | Clamp-on 85mm | Mounting | Mounts to outside of lens barrel | Zoom Through | Yes, with vignetting at wide angle setting on camera lens | Magnification | 1.6x | Converted Focal Length | Not applicable, depends on camera lens | Minimum Object Distance (M.O.D.) | MOD of original lens is increased | Filter Size | Not specified by manufacturer | Dimensions | Not specified by manufacturer | Weight | 3.3 lbs (1.5kg) | |