Nikon FM

Nikon FM is Nikon's mechanical-only consumer SLR from 1977-1982 — the manual-exposure counterpart to the FE. The FM is fully mechanical (no batteries needed for shutter); the meter requires batteries but the camera operates without them. The FM was Nikon's answer to the mechanical-SLR market alongside the Pentax K1000 and Olympus OM-1; lighter and smaller than the F2 but built to last.

Key features

• F-mount bayonet — AI compatible (AI-S works as well)
• Mechanical horizontal titanium shutter — 1s to 1/1000 + B
• Manual exposure only — no AE modes
• LED metering display in viewfinder (over/under indicators)
• Battery-independent for shutter; battery for meter only
• Compact body — lighter than FE/FE2

Practical notes

• FM bodies on used market: $150-300 working examples
• Pairs naturally with consumer-grade AI/AI-S Nikkors
• The MD-11 motor drive is the matched accessory
• Some pre-AI lenses can be physically mounted but won't meter properly

Related cameras

• Nikon FM2 — refined successor with 1/4000 shutter
• Nikon FE — AE sibling
• Nikon F2 — pro-grade mechanical alternative
• Pentax K1000 — competitor mechanical SLR

Native lenses

Compatible with all AI/AI-S Nikkors