Nikon 1988 Instruction Manual - Page 12

DETERMINING EXPOSURE With built-in TTL metering The Micro-Nikkor 105mm f/2.8 has a fully automatic diaphragm with settings from f/2.8 to f/32. The lens couples fully to the through-the-lens meter of any Nikon AI or F/F2 Photomic camera for full aperture exposure measurement over the entire range of aperture settings. When close-up attachments such as a PN ring or bellows are used, the exposure measurement method is shown in the table at the right. • When the lens is mounted in the reverse position, the stop-down method should be used. (For details, check your camera's instruction manual). • When the stop-down method is used at small apertures, attach a finder eyecup to the eyepiece so no stray light will enter. Camera Close-up attachment Exposure measurement AI PN-11 full-aperture AI* PN-1 stop-down AI Bellows/E2 and K rings stop-down non-AI PN-11 stop-down non-AI PN-1 full-aperture non-AI Bellows/E2 and K rings stop-down * Some AI camera bodies will not accept the PN-1 ring. 12