Fuji GW690III Manual

The Fuji GW690III is a professional medium format rangefinder camera known as the "Texas Leica" due to its large size and 6x9cm film format. It features a fixed 90mm f/3.5 lens, mechanical shutter with speeds from 1 to 1/500 sec plus Bulb, coupled rangefinder focusing, automatic film counter with auto-stop at frame 8, and manual film advance. Below are key sections for operation, features, specifications, maintenance, and troubleshooting.

Features at a Glance

Key components: 90mm f/3.5 EBC Fujinon lens, Mechanical leaf shutter, Coupled rangefinder, Film advance lever, Shutter speed dial, Aperture ring, Focus ring, Film counter.

Feature	Description
Lens	90mm f/3.5 EBC Fujinon (5 elements in 4 groups)
Shutter	Seiko mechanical leaf shutter, 1-1/500 sec + B
Viewfinder	Bright-frame with parallax correction marks
Rangefinder	Coupled rangefinder with 70mm base length
Film Format	6x9cm on 120 film (8 exposures)
Film Advance	Manual lever with auto-stop at frame 8
Flash Sync	All shutter speeds via PC sync socket
Weight	Approximately 1400g (without film)
Dimensions	195mm x 125mm x 115mm

Camera Overview

Familiarize yourself with camera components before use.

1. Front: Lens, shutter release, self-timer, PC sync socket, focus ring, aperture ring.
2. Top: Shutter speed dial, film advance lever, frame counter, accessory shoe.
3. Back: Film back release latch, pressure plate, film rails.
4. Bottom: Tripod socket (1/4"), film rewind knob.

WARNING! Camera is heavy; use neck strap to prevent dropping. Handle lens with care to avoid scratches.

Loading Film

Use 120 roll film only. Loading in subdued light recommended.

1. Open back: Pull up film back release latch.
2. Insert film: Place film in chamber, align arrow with start mark.
3. Thread film: Lead paper under roller, insert into take-up spool.
4. Close back: Ensure latch clicks securely.
5. Advance: Wind until frame counter shows "1".
6. Set ISO: Manually remember film speed for metering.

CAUTION! Do not force film advance. Ensure back is fully closed to prevent light leaks.

Specifications

• Film Format: 6x9cm on 120 film
• Exposures: 8 frames per roll
• Lens: 90mm f/3.5 EBC Fujinon
• Shutter: Seiko leaf, 1-1/500 sec + B
• Aperture: f/3.5 to f/22
• Focusing: Coupled rangefinder, 1m to infinity
• Viewfinder: Bright-frame with parallax marks
• Flash Sync: All speeds via PC socket
• Weight: 1400g (body only)
• Dimensions: 195 x 125 x 115mm

Controls and Operation

Master camera controls for optimal results.

Shutter Speed Dial: 1, 2, 4, 8, 15, 30, 60, 125, 250, 500, B. Aperture Ring: f/3.5 to f/22. Focus Ring: 1m to infinity with depth of field scale.

Operation: Cock shutter with advance lever, set exposure, focus via rangefinder, press shutter release. Film advance: Wind fully until lever stops. Frame counter: Automatically advances and stops at frame 8.

Shooting Techniques

Optimize results with proper technique.

1. Hold camera steady: Use both hands, elbows tucked in.
2. Focus accurately: Align rangefinder patches carefully.
3. Meter separately: Use external light meter for exposure.
4. Compose: Use viewfinder frame lines, account for parallax at close distances.
5. Advance film: Complete stroke to prevent overlapping frames.

Tip: Use tripod for slow shutter speeds. Bracket exposures for critical shots.

Lens and Focusing

90mm f/3.5 lens equivalent to 40mm in 35mm format.

1. Focusing: Turn focus ring until rangefinder patches align.
2. Aperture: Set via ring on lens barrel.
3. Depth of Field: Use scale on lens for hyperfocal distance.
4. Close Focus: Minimum 1 meter (3.3 feet).
5. Lens Hood: Recommended to prevent flare.
6. Filters: 67mm thread size.

WARNING! Do not touch lens surfaces. Clean only with lens brush or air blower.

Maintenance & Care

Store in dry, cool place. Use silica gel to prevent moisture.

Cleaning: Blow dust with air blower. Wipe body with dry cloth. Storage: Store with shutter uncocked and lens capped. Service: Professional CLA recommended every 2-3 years.

CAUTION! Do not use alcohol or solvents on lens. Avoid extreme temperatures and humidity.

Accessories

Compatible accessories enhance functionality.

Accessory	Purpose
Lens Hood	Prevents flare, protects lens
Filters (67mm)	UV, Skylight, Polarizing, etc.
Case	Protects camera during transport
Tripod	Essential for long exposures
Light Meter	External meter for accurate exposure
Flash Unit	PC sync compatible flash

Troubleshooting

Symptom	Possible Cause	Corrective Action
Shutter not firing	Not cocked/battery	Cock shutter with advance lever; camera is mechanical, no batteries needed.
Blurry images	Focus/camera shake	Check rangefinder alignment; use faster shutter speed or tripod.
Light leaks	Back not sealed	Ensure back latch clicks shut; check foam seals.
Film not advancing	Improper loading	Reload film ensuring proper engagement with take-up spool.
Rangefinder out of alignment	Impact/misadjustment	Professional calibration required.

Service: Contact authorized Fuji service center for repairs and calibration.

Support: Consult professional camera technician for maintenance.