Nikon FM3A (2001–2006)

A 35-mm film SLR with a hybrid electro-mechanical shutter, combining mechanical reliability with electronic aperture-priority auto exposure.

Overview

The Nikon FM3A is a 35-mm single-lens reflex camera produced from 2001 to 2006. It was designed as a high-end manual focus film SLR, bridging features from the FM and FE series. Marketed during the early digital transition, it stood out for its hybrid shutter system, offering both fully mechanical manual operation and electronic aperture-priority auto exposure. The camera uses the Nikon F mount, supports AI and later lenses, and features a robust, compact design favored by photographers seeking precision and reliability in a film platform.

Specifications

Type of camera	35-mm single-lens reflex with electronically and mechanically controlled focal-plane shutter
Applicable film format	35-mm film in a cartridge
Picture Frame Size	24 x 36 mm
Lens mount	Nikon F mount
Shutter	Vertical-travel, metal focal-plane shutter; electro-mechanical hybrid (aperture-priority auto exposure is electronic, manual speeds are mechanical)
Shutter-Speed settings	Automatic ("A" aperture-priority auto): 8 to 1/4000 sec., stepless electronic control; Manual: Bulb, 1 to 1/4000 sec., mechanical control
Viewfinder	Eye-Level pentaprism
Viewfinder display	Analog match-needle interface
Viewfinder specifications	Glass pentaprism. 0.83x magnification with 50mm lens at infinity. 93% frame coverage.
Eyepoint	14 mm
Standard Focusing screen	K3 type (split prism, microprism collar, Clear Matte Screen IIa); B3 and E3 types optional
Viewfinder information	Shutter speed, exposure meter indication, shutter indication, direct aperture value, exposure compensation mark, ready light
Reflex Mirror	Quick-return type
Exposure modes	Manual and aperture-priority auto exposure
Exposure meter coupling	Ai type (automatic compensation at full-aperture)
Metering System	TTL center-weighted, full-aperture metering; approx. 60% of sensitivity concentrated on a 12-mm diameter circle
Metering Range	EV1 to EV20 at ISO 100 (with a 50-mm f/1.4 lens)
Film-sensitivity settings	DX automatic coding (ISO 25 to 5000) or manual setting (ISO 12 to 6400)
Exposure Compensation	±2 EV in 1/3 EV steps (compensation limits apply at ISO extremes)
Auto Exposure Lock	Enabled by pressing the AE lock button on the back
Film advance Lever	30° standoff angle, 135° winding angle; works with optional MD-12 Motor Drive
Frame Counter	Additive type, automatic reset (S, 1 to 36)
Film Rewinding	Manual via rewind crank and film reset button
Self-timer	Mechanical, approx. 4 to 10 seconds, cancellable
Lens Aperture Control	Instant-return system
Multiple Exposure	Activated with dedicated lever
Flash Sync	X-contact only; sync speed up to 1/250 sec.
Flash control	TTL flash control with compatible Speedlights (e.g., SB-27, SB-26, SB-50DX)
TTL flash Exposure Compensation	-1 EV compensation via dedicated button
Film speed range for TTL flash	ISO 12 to 1000
Sync Terminal	Standard JIS sync terminal with lock screws
Accessory Shoe	Hotshoe with multiple contacts and lock hole
Ready Light	Indicates flash charge; blinks for full-output warning or at shutter speeds 1/500 to 1/4000 sec.
Camera-Back	Detachable hinged back; compatible with MF-16/MF-12 Databacks
Camera-Back Opening	Released via film advance lever
Power Source	One 3-V lithium battery (CR-1/3N), two 1.55 V silver batteries (SR44), or two 1.5 V alkaline batteries (LR44)
Meter-on Timer	Activates with light shutter button press; turns off after 16 sec. (66 sec. with MD-12 Motor Drive)
Battery Check	Displayed in viewfinder for 16 seconds when meter is active
Lens Compatibility	Nikon F mount. Works with AI and later manual and autofocus lenses. Pre-AI lenses require modification. G lenses require stop-down metering.
Motor drive	Compatible with MD-12 Motor Drive
Optional accessories	MD-12 Motor Drive; SB-27 Speedlight; MF-16 Data Back; various camera cases; cable releases, etc.
Tribeod Socket	1/4" (ISO 1222)
Dimensions (W x H x D)	Approx. 142.5 x 90 x 58 mm / 5.6 x 3.5 x 2.3 in. (body only)
Weight	Approx. 570 g / 20.1 oz. (body only, including battery)

Design

Features a hybrid electro-mechanical shutter, combining fully mechanical manual operation with electronic aperture-priority auto exposure.

Context

Introduced in July 2001 and marketed as a premium, final film SLR during the early digital era. It was the final model of the Nikon FM series, incorporating key features from both the FM/FM2 and FE/FE2 lineages.

Market

Commands a high price on the used market. Recommended checks when buying: verify meter accuracy and stability across all speeds, and function of all buttons (AE-L, etc.).