Westcott FJ100 S 100Ws Touchscreen Speedlight for Sony Cameras

Westcott FJ100 S 100Ws Touchscreen Speedlight for Sony with FJ Mini AC/DC Battery
High-Output On/Off-Camera Sony Speedlight – Dedicated Multi Interface Shoe, 100Ws Round Head, 2.4 GHz Transceiver & Touchscreen Control

The Westcott FJ100 S is a powerful, ultra-compact 100Ws speedlight designed for Sony mirrorless and DSLR camera systems. Featuring a dedicated Sony Multi Interface hot shoe, the FJ100 S provides native TTL and High-Speed Sync (HSS) integration. Its round-head architecture houses an Omega flash tube that produces smooth, natural light falloff across a 24-200mm automatic/manual zoom range, complete with 90° vertical tilt and full 360° horizontal rotation for versatile bounce control.

Equipped with an integrated 2.4 GHz wireless transceiver, the FJ100 S functions as an on-camera speedlight, a master system transmitter, or an off-camera wireless receiver across 16 groups and 31 channels up to 328 feet. Onboard settings are managed via a high-resolution LCD touchscreen paired with color-coded LED group indicators. Powered by the included FJ Mini 3200mAh AC/DC lithium-ion battery, the unit yields 575+ full-power flashes per charge with fast 0.01 to 1.6-second recycle times, HSS up to 1/8000s, burst speeds up to 60 fps, and continuous USB-C power delivery.

This speedlight package includes the removable FJ Mini AC/DC battery, a shoe mini stand with a 1/4″-20 threaded mount, and a USB-C cable.

Key Features & System Attributes

Dedicated Sony Hot Shoe Compatibility: Native TTL auto-exposure and HSS communication designed specifically for Sony cameras.

100Ws Power Output & Round Head: Features an Omega flash tube and 24-200mm motorized zoom head for soft, circular lighting coverage.

Integrated 2.4 GHz Transceiver: Functions as a master transmitter or off-camera receiver within the Westcott FJ wireless ecosystem.

Touchscreen Interface & LED Indicators: High-resolution touch LCD screen accompanied by visual color-coded LED group indicators.

FJ Mini AC/DC Battery (575+ Flashes): Removable 3200mAh battery recharges in 2.3 hours via USB-C and supports continuous pass-through power.

Advanced Sync & High-Speed Performance: Supports 1/8000s HSS, 0.01-1.6s recycling, up to 60 fps continuous burst, and a 3W LED modeling light.

Technical Specifications

Product Type: On-Camera / Off-Camera Speedlight for Sony

Maximum Power: 100 Ws

Power Control: 9 Stops (0.78 Ws to 100 Ws in 0.1-Stop Increments)

Head Design: Round Head with 24-200mm Auto/Manual Zoom

Bounce & Swivel Range: 0° to 90° Vertical Tilt | 360° Horizontal Rotation

Camera Compatibility: Sony Multi Interface Shoe Systems (TTL/HSS)

Flash Modes: TTL, Manual, Stroboscopic (Multi), Freeze Sync

Sync Modes: High-Speed Sync (Up to 1/8000s), Front Curtain, Rear Curtain

Flash Duration (Normal): 1/1,700 to 1/31,000 Second (t0.5)

Flash Duration (Freeze): 1/2,000 to 1/55,600 Second (t0.5)

Recycle Time: 0.01 to 1.6 Seconds

Color Temperature: 5800K (±200K) Flash | 5500K (±200K) 3W LED Modeling Light

Wireless Protocol: 2.4 GHz Transceiver (16 Groups / 31 Channels / 328′ Range)

Power Source: Removable 7.4V / 3200mAh (23.38Wh) Li-Ion Battery or USB-C Pass-Through

Flashes Per Charge: 575+ Full-Power Flashes

Physical Mounts: Dedicated Sony Hot Shoe, Twist-Lock Ring, 1/4″-20 Mini Stand Mount

Dimensions (L x W x H): Approx. 7.5 x 3.0 x 3.0 inches / 190.5 x 76.2 x 76.2 mm

Weight: 1.1 lb / 499 g