Nikon 1683 Instruction Manual - Page 50

IMPORTANT! The Nikon FM2 is an AI-type (Automatic Maximum Aperture Indexing) camera which performs full-aperture metering with AI -type lenses. The aperture rings of these lenses are fitted with meter coupling ridges (see illustration). Almost all lenses now manufactured by Nikon are the AI type. However, please confirm whether or not your lens is AI before using it with the FM2. Although almost all Nikkor lenses that have the Nikon F bayonet mount, as well as the Nikon Series E lenses, can be mounted on the FM2, the FM2 cannot be used with Nikkor lenses that have not yet been modified to offer the AI facility and with a few special-purpose lenses because the FM2's meter coupling ridge is fixed , and the FM2 does not have a mirror lock-up mechanism. For particulars, refer to the table below. Lens Fisheye-Nikkor 6mm 1/5.6 Rsheye-Nikkor 1Omm fl5.6 OP PC -Nikkor 2Smm fl4 PC-Nikkor 35mm f/ 2.S Reason Requires mirror lock-up Requires mirror lock-up Reflex-Nlkkor 1000mm fl11 Reflex-Nlkkor 2oo0mm f/11 Zoom-Nikkor 200 - 600mm f/9.5 Zoom-Nikkor ED 1S0 - 600mm f/S Zoom-Nikkor ED 360 - 1200mm f/ 11 Focusing Unit AU-1 Other Nikkor lenses that have not been modified to offer the AI facility Hits camera's meter coupler lever Remark s Not usable Not usable Serial No. 180901 and higher usable Serial Nos. 851001 to 906200 not usable Serial No. lower than 14236 1 and higher than 143000 usable Serial No. 200311 and higher usable Serial No. 300491 and higher usable Serial No. 174 167 and higher usable Serial No. 1740S8 and higher usable Not usable Not usable 50