Fujifilm GA645 Manual

The Fujifilm GA645 is a medium format autofocus rangefinder camera that uses 120/220 film, featuring a 60mm f/4 lens (equivalent to 35mm in 35mm format), automatic exposure control, built-in flash, multiple exposure modes, and advanced metering system. Below are key sections for operation, features, loading film, shooting techniques, maintenance, and troubleshooting.

Features at a Glance

Key components: 60mm f/4 Fujinon lens, Autofocus system, Program AE mode, Built-in pop-up flash, Film transport system, LCD information panel.

Feature	Description
Lens	60mm f/4 Fujinon (35mm equivalent)
Film Format	120/220 medium format (16/32 exposures)
Autofocus	Passive infrared AF system
Exposure Modes	Program AE, Aperture Priority, Manual
Metering	Center-weighted averaging
Flash	Built-in GN14 pop-up flash
Film Transport	Automatic winding and rewinding
Viewfinder	Bright-frame with parallax correction
Power Source	2CR5 6V lithium battery
Weight	Approximately 800g

Camera Overview

Familiarize yourself with camera controls and components.

1. Front: Lens, AF window, Self-timer LED, Grip
2. Top: Shutter button, Mode dial, LCD panel, Flash button
3. Back: Viewfinder, Film chamber, Control buttons
4. Bottom: Battery compartment, Tripod socket

WARNING! Never force controls; handle with care to avoid damage.

Loading Film

Proper film loading ensures optimal performance.

1. Open back: Slide latch and open camera back.
2. Insert film: Place 120 film in chamber, align markers.
3. Thread film: Pull paper leader to red mark on take-up spool.
4. Close back: Ensure secure closure; camera auto-advances to frame 1.
5. Check counter: Verify frame counter displays "1".

CAUTION! Load film in shaded area; avoid direct sunlight.

Basic Operation

• Power On: Turn mode dial from OFF to desired setting.
• Focusing: Half-press shutter for AF; confirm focus in viewfinder.
• Exposure: Camera meters automatically in Program AE mode.
• Shooting: Full press shutter to capture image.
• Film Advance: Automatic after each exposure.
• Rewinding: Automatic when film reaches end.

Shooting Modes

Access shooting modes via mode dial on top plate.

Program AE (P): Fully automatic exposure control.

Aperture Priority (A): Set aperture manually; camera selects shutter speed.

Manual (M): Full manual control of aperture and shutter speed.

Bulb (B): Long exposures (shutter stays open while button pressed).

Exposure Compensation: ±2EV in 1/3 stop increments.

Lens and Focus

60mm f/4 lens with autofocus capability.

1. AF Operation: Half-press shutter to activate autofocus.
2. Manual Focus: Switch on lens barrel for precise control.
3. Focus Lock: Maintain half-press to lock focus distance.
4. Minimum Distance: 0.7m from film plane.

Tip: Use focus lock for off-center subjects.

Flash Operation

Built-in pop-up flash with automatic exposure control.

1. Activate Flash: Press flash button on top plate.
2. Auto Flash: Camera selects flash output in Program mode.
3. Flash Range: Effective 0.7m to 4.5m at ISO 100.
4. Recycling: Approximately 3 seconds between flashes.
5. Red-eye Reduction: Pre-flash reduces red-eye effect.

WARNING! Do not touch flash during or immediately after use.

Advanced Features

Multiple Exposure: Enable via function button for creative effects.

Exposure Bracketing: ±0.5 or ±1.0 EV bracketing in 3-shot sequences.

Self-timer: 10-second delay with audible signal.

Date Imprint: Optional date/time stamp on film margin.

Custom Functions: Programmable settings via function menu.

Care & Maintenance

Store in cool, dry place. Use lens cap when not in use. Clean with soft brush and lens tissue only.

CAUTION! Never use alcohol or solvents on lens surfaces. Avoid extreme temperatures and humidity.

Specifications

• Camera Type: Medium format autofocus rangefinder
• Film: 120/220 roll film
• Image Size: 6×4.5cm (16/32 exposures)
• Lens: Fujinon 60mm f/4 (4 elements in 4 groups)
• Shutter: Electronically controlled leaf shutter
• Shutter Speed: 2 sec to 1/700 sec, Bulb
• Metering: Center-weighted, EV 2 to EV 19 (ISO 100)
• Flash Sync: All shutter speeds
• Power: One 2CR5 6V lithium battery
• Dimensions: 148×93×66mm

Troubleshooting

Symptom	Possible Cause	Corrective Action
Camera not working	Dead battery	Replace 2CR5 battery; check polarity.
Autofocus not working	Low light/obstacles	Move to better light; ensure AF window clean.
Film not advancing	Improper loading	Reload film; check paper leader alignment.
Exposure incorrect	Metering error	Check exposure compensation; clean meter cell.
Flash not firing	Recycling/activation	Wait for recycle; ensure flash fully extended.

Reset: Remove battery for 30 seconds to reset electronics.

Service: Contact authorized Fujifilm service center for repairs.