The F2AS is the last, best, most advanced and most durable mechanical camera ever made by Nikon. It might be the best ever made by anyone. It was the last and best of the professional F2 series started a decade before.
Optimized for Nikon's AI lenses (1977 - 1983). AI-S, AF and AF-S lenses made from 1983 through today also work flawlessly so long as they have an aperture ring.
G and AF-P lenses won't work because they have no aperture rings.
Series E lenses from decades ago work flawlessly because they also are AI-S, but modern E (Electronic diaphragm) lenses will always shoot wide-open.
Mirror lock-up allows use of old fisheye and ultrawide lenses that recessed into the body.
Press the release button and flip-up the little lever around the lens mount between the "HP" on the finder and the lens mounting index dot to use ancient non-AI lenses made from 1959 - 1977 with stop-down metering. Nikon offered AI updating for these ancient lenses to make them work just like AI.
The Nikon F2 is a professional-level, interchangeable lens, 135 mm film, single-lens reflex (SLR) camera. It was manufactured by the Japanese optics company Nippon Kogaku K. K. (Nikon Corporation since 1988) in Japan from September 1971 to 1980. It used a horizontal-travel focal plane shutter with titanium shutter curtains and a speed range of 1 to 1/2000 second (up to 10 seconds using the self-timer) plus Bulb and Time, and flash X-sync of 1/80th second. It had dimensions (with DE-1 head, see below) of 98 mm height, 152.5 mm width, 65 mm depth and 730 g weight. It was available in two colors: black with chrome trim and all black.
The F2 is the second member of the long line of Nikon F-series professional-level 35 mm SLRs that began with the Nikon F (manufactured 1959–1974) and followed each other in a sort of dynastic succession as the top-of-the-line Nikon camera. The other members were the F3 (1980–2001), F4 (1988–1996), F5 (1996–2005) and F6 (2004–present). The F-series do not share any major components except for the all-important bayonet lens mount ('F mount').
All Nikon professional F-series SLRs are full system cameras. This means that each camera body serves as only a modular hub.