Nikon's classic push-pull 80-200mm f/2.8 — the original 'One Touch' fast telephoto zoom for F-mount.
The Nikon AF Nikkor 80-200mm f/2.8 ED (One Touch) was produced from 1987 to 1992 as the original autofocus professional telephoto zoom for Nikon F-mount, using a push-pull single-ring barrel design. Sixteen elements in 11 groups including 3 ED elements. Nine straight aperture blades. 72mm filter thread (not 77mm — the later two-ring f/2.8D uses 77mm). At 1,272g. 1.5m MFD.
The optical design uses 16 elements in 11 groups (3 ED elements). Nine straight aperture blades. The 72mm filter thread. At 1,272g the lens is substantial. Minimum focus distance of 1.5m. Push-pull zoom: pulling the barrel toward the body = 200mm, pushing away = 80mm. Screw-drive AF (body motor). f/2.8 constant aperture. Full-frame coverage.
The push-pull One Touch design was Nikon's approach to rapid zoom adjustment: a single-ring barrel simultaneously zooms when pushed/pulled and focuses when rotated, enabling quick focal length changes with one hand. The later two-ring f/2.8D (1992+) replaced the push-pull with separate zoom and focus rings. The 72mm filter thread (versus 77mm on the D version) is the key identification marker: same filter thread as the Canon L 70-200mm f/2.8 IS II, but not the D version.
On the used market the Nikon 80-200mm f/2.8 ED One Touch is affordable as a vintage Nikon professional telephoto zoom. Condition checks: zoom tension (push-pull mechanism), AF coupling, 72mm front element for marks. Push-pull design. Compatible with Nikon F-mount FX and DX bodies with built-in AF motor.