Nikon F Red Dot + Nikkor-H 50mm f/2

The Nikon F is where the modern system camera starts. When it landed in 1959 the individual ideas weren't all new (interchangeable prisms, a bayonet lens mount, a depth-of-field preview, mirror lock-up, an instant-return mirror), but nothing had pulled them into one body built to be lived on, dropped, repaired and handed down. It is the camera that convinced working photographers a 35mm SLR could do the job a Leica or a press camera did, and do more.

This body is one of the rare “Red Dot” Nikon Fs. In 1964 and 1965 Nikon factory-modified a short run of bodies to accept the new Photomic T metered finder, machining down the lip at the back of the finder cavity and marking each camera with a small red dot beside the serial number. Only a few thousand left the factory this way before the change was folded into regular production, which makes the Red Dot one of the sought-after variants of the most important 35mm SLR ever made: the same indestructible F, with a place in the collector chronology that ordinary bodies don't have.

Mechanically it asks nothing of a battery. The horizontal titanium-foil shutter runs 1 second to 1/1000 entirely on springs and gears, the finder lifts off so you can swap a metered Photomic head or a waist-level hood, and the back comes fully off for bulk-loading. You wind a single long stroke, you focus, you shoot. It is about as close to a mechanical absolute as 35mm gets.

The F earned its reputation in the field rather than the showroom: it went to Vietnam in the hands of photojournalists and into lunar orbit aboard Apollo, and the same F-mount it introduced still mounts lenses on Nikon bodies sixty-odd years later. Buy one understanding it's a tool from before automation, and that's exactly why it still works.