Product Description
Westcott FJ100 S Touchscreen Speedlight Flash with Sony Camera Mount (100Ws)
The Westcott FJ100 S Touchscreen Speedlight combines powerful 100Ws flash output with a dedicated Sony camera mount, long battery life and intuitive touchscreen control. Designed for Sony photographers who need a compact yet capable lighting solution, it can be used directly on-camera, as an FJ Wireless transmitter or as an off-camera client flash.
With TTL control, High-Speed Sync, rapid recycling and full integration with the Westcott FJ Wireless System, the FJ100 S is ideal for weddings, events, portraits, commercial assignments and location photography.
Powerful 100Ws Output in a Compact Speedlight
The FJ100 S delivers an impressive 100 Watt-seconds of flash power in a highly portable round-head design. It offers considerably more lighting capability than many conventional speedlights while remaining compact enough to carry throughout a full working day.
It is particularly well suited to:
- Wedding photography
- Event photography
- Portrait sessions
- Corporate headshots
- Fashion and editorial photography
- Commercial assignments
- Studio and location work
Dedicated Sony Camera Compatibility
The FJ100 S features a dedicated Sony-compatible hot shoe, providing dependable communication with compatible Sony cameras.
Mount it directly on your camera for fast-moving assignments or remove it from the hot shoe and use it wirelessly as part of a more advanced off-camera lighting setup.
On-Camera Flash and Wireless Transmitter
The integrated 2.4GHz FJ Wireless transceiver allows the FJ100 S to perform several roles within the same lighting system.
Use it:
- On-camera as a powerful Sony TTL speedlight
- On-camera as a wireless transmitter for compatible FJ lights
- Off-camera as a wireless client flash
- As part of a multi-light studio or location setup
This flexibility makes it easy to start with one flash and expand your lighting system as your photography develops.
More Than 575 Full-Power Flashes
The included 3200mAh FJ Mini AC/DC Battery delivers more than 575 full-power flashes per charge, giving you the endurance required for weddings, events and extended portrait sessions.
The battery can be charged or powered through USB-C, helping you continue working during long shoots. It is also interchangeable with the battery used by the Westcott FJ100 Strobe, reducing the number of separate batteries and chargers required across your lighting kit.
High-Resolution Colour Touchscreen
A bright LED colour touchscreen places essential controls within easy reach, allowing you to make adjustments quickly without navigating complicated menus.
Use the touchscreen to control:
- Flash output
- TTL exposure compensation
- Wireless groups and channels
- Zoom position
- Sync functions
- Creative flash modes
- Modelling lamp brightness
The intuitive FJ Wireless interface helps you spend less time adjusting equipment and more time concentrating on the photograph.
Reliable FJ Wireless Control
The built-in 2.4GHz wireless system provides reliable communication at distances of up to 100 metres.
Wireless features include:
- 31 wireless channels
- Six host groups
- Up to 16 client groups
- Colour-coded LED group indicators
- Remote flash power adjustment
- Compatibility with FJ Wireless triggers, strobes and speedlights
Flash output can be displayed in either stops or fractions, allowing you to use the format that best suits your existing workflow.
TTL and Manual Flash Control
The FJ100 S supports both automatic TTL exposure and precise manual flash control, making it equally suitable for changing environments and carefully constructed lighting setups.
Available flash functions include:
- TTL automatic exposure
- Manual flash output
- High-Speed Sync up to 1/8000 second
- Freeze Sync
- Front Curtain Sync
- Rear Curtain Sync
- Stroboscopic Mode
These modes provide the flexibility to balance flash with daylight, freeze action or create expressive motion effects.
Fast Recycling for Demanding Shoots
Recycle times from just 0.01 to 1.6 seconds help the FJ100 S keep pace with rapidly changing scenes.
Continuous capture at up to 60 frames per second may also be possible with compatible cameras and settings, helping you record movement, expressions and decisive moments without waiting for the flash to recover.
Freeze Fast-Moving Subjects
The FJ100 S can produce extremely short flash durations, reaching as fast as 1/55,600 second at t0.5 in Freeze mode.
This makes it an excellent choice for photographing:
- Sports and dance
- Water splashes
- Powder effects
- Fast-moving products
- Action portraits
- Creative movement studies
Consistent Colour at Every Power Level
The FJ100 S maintains a consistent 5800K ±200K colour temperature throughout its full nine-stop power range.
Flash output can be adjusted between 0.78Ws and 100Ws in either 0.1-stop or full-stop increments, helping you create precise and repeatable lighting setups without unexpected colour shifts.
Round Omega Flash Tube
The round Omega flash tube produces a smooth, even light pattern with natural-looking fall-off.
This circular output is especially effective for:
- Portraits
- Weddings
- Beauty photography
- Event coverage
- Environmental portraits
It provides attractive direct light and works beautifully when bounced or used with compatible modifiers.
Automatic and Manual 24–200mm Zoom
The built-in zoom head covers focal lengths from 24mm to 200mm.
It can automatically match the focal length of your lens or be adjusted manually for more creative control over the beam spread.
Use a wider zoom position to illuminate a broader area or choose a longer setting to produce a narrower, more concentrated beam.
Flexible Bounce Flash
The flash head tilts through 90 degrees and rotates through a full 360 degrees, providing extensive control over the direction of light.
This makes it easy to:
- Bounce light from ceilings
- Reflect flash from nearby walls
- Feather the light away from your subject
- Direct the head behind or beside the camera
- Position the flash precisely when used off-camera
Bouncing the flash can create softer shadows and more natural-looking illumination than direct on-camera lighting.
Compatible with Professional Light Modifiers
The FJ100 S supports Westcott Twist Lock modifiers and umbrellas, allowing you to shape and soften the light without a complicated mounting system.
Pair it with the optional Westcott S-Bracket 2 to use larger Bowens-mount softboxes and other studio modifiers.
The included shoe stand features a 1/4"-20 threaded receiver, making it easy to mount the speedlight securely on a compatible light stand.
Built-In 3W LED Modelling Lamp
The integrated 3W LED modelling lamp provides continuous 5500K illumination with independent brightness control.
It can be used to:
- Preview the direction of light
- Assess shadows before shooting
- Assist with subject positioning
- Improve visibility in darker environments
Automatic adjustment functionality further streamlines the lighting workflow.
Intelligent Heat Protection
The FJ100 S uses intelligent multi-stage heat monitoring to support reliable performance during demanding shoots.
It can deliver up to 100 consecutive full-power flashes, helping you work confidently through weddings, events, portrait sessions and other high-volume assignments.
Expand Your FJ Wireless System
The FJ100 S integrates seamlessly with compatible Westcott FJ Wireless triggers, speedlights, strobes and receivers.
This gives you the freedom to expand from a single speedlight into a complete multi-light setup for portrait, studio or location photography.
When used with a compatible FJ Wireless trigger, the free Westcott StudioLink app also allows you to adjust settings, control lights and access additional features remotely from a mobile device.
Why Choose the Westcott FJ100 S Touchscreen Speedlight?
- Powerful 100Ws flash output
- Dedicated hot shoe for compatible Sony cameras
- On-camera flash, wireless transmitter and wireless client operation
- More than 575 full-power flashes per charge
- USB-C rechargeable and interchangeable battery
- High-resolution colour touchscreen
- TTL and Manual flash control
- High-Speed Sync up to 1/8000 second
- Recycle times from 0.01 seconds
- Round Omega flash tube
- Automatic and manual 24–200mm zoom
- 360-degree rotation and 90-degree tilt
- Twist Lock modifier compatibility
- Integrated 3W LED modelling lamp
- Complete FJ Wireless System integration
Westcott FJ100 S Specifications
| Product | Westcott FJ100 S Touchscreen Speedlight |
|---|---|
| Camera Compatibility | Compatible Sony cameras |
| Flash Power | 100Ws |
| Wireless System | Westcott FJ Wireless |
| Wireless Frequency | 2.4GHz |
| Wireless Range | Up to 328ft / 100m |
| Wireless Channels | 31 |
| Wireless Groups | Six host groups and 16 client groups |
| Power Range | Nine stops, 0.78–100Ws |
| Power Adjustments | 0.1-stop or 1-stop increments |
| Flash Modes | TTL and Manual |
| Sync Functions | HSS, Front Curtain, Rear Curtain and Freeze |
| Maximum High-Speed Sync | Up to 1/8000 second |
| Recycle Time | 0.01–1.6 seconds |
| Zoom Range | 24–200mm |
| Flash Head Movement | 90° vertical tilt and 360° horizontal rotation |
| Normal Flash Duration | 1/540–1/17,000 second t0.1; 1/1,700–1/31,000 second t0.5 |
| Freeze Flash Duration | 1/620–1/23,000 second t0.1; 1/2,000–1/55,600 second t0.5 |
| Colour Temperature | 5800K ±200K |
| Flash Tube | Round Omega tube |
| Modifier Compatibility | Westcott Twist Lock and umbrellas |
| Modelling Lamp | 3W LED, 5500K ±200K |
| Display | LED colour touchscreen |
| Battery | FJ Mini AC/DC lithium-ion battery |
| Battery Capacity | 3200mAh |
| Battery Performance | 575+ full-power flashes |
| Ports | USB-C for firmware updates, battery charging and power |
| Operating Temperature | 0°C to 45°C |
| Product Dimensions | 7.5 × 3 × 3in |
| Product Weight | 1.17lb / approximately 531g |
| Colour | Black |
| Warranty | One year |
What’s in the Box?
- 1 × Westcott FJ100 S Touchscreen Speedlight
- 1 × FJ Mini AC/DC Battery
- 1 × Speedlight Shoe Stand
- 1 × USB Cable
- 1 × Travel Case
Care and Safety
- Keep the speedlight away from fire, water and moisture.
- Do not submerge the flash or battery in water.
- Avoid sudden or extreme temperature changes before, during and after use.
- Do not overtighten the shoe-lock dial when mounting the flash.
- Always confirm that the speedlight is securely mounted before shooting.
- Clean the exterior with a dry cloth when required.
- Do not attempt to modify or disassemble the speedlight.
Why Buy the Westcott FJ100 S from Carmarthen Cameras?
The Westcott FJ100 S Touchscreen Speedlight is an excellent choice for Sony photographers who need powerful, portable and highly flexible flash lighting. Its dedicated Sony mount, 100Ws output, long-lasting rechargeable battery and advanced wireless controls make it ideal for weddings, events, portraits and professional location work.
At Carmarthen Cameras, we stock genuine Westcott lighting equipment and accessories for professional and enthusiast photographers throughout the UK. Our knowledgeable team can help you choose compatible triggers, modifiers, stands and additional FJ Wireless lights to build a dependable lighting system suited to your photography.
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