Nikon SB-910 AF Speedlight

Nikon SB-910 AF Speedlight
Flagship i-TTL On-Camera Flash – Guide Number 111.5′, Wireless Commander Mode, Auto Zoom 17-200mm & Thermal Cut-Out Protection

The Nikon SB-910 AF Speedlight is a flagship on-camera flash unit designed for Nikon FX and DX-format DSLR and mirrorless camera systems. Operating as a core component of the Nikon Creative Lighting System (CLS), the SB-910 offers full i-TTL automatic exposure metering and a high guide number of 111.5 feet at ISO 100 (35mm position). Its versatile auto zoom head automatically adjusts to the camera sensor format, covering a focal range from 17-200mm on FX cameras (12-200mm on DX), which can be expanded down to 12mm (8mm on DX) using the built-in pull-out wide-angle diffusion panel.

Built for complete directional control, the flash head tilts from -7° to 90° and swivels 180° left and right for a full 360° bounce range. The SB-910 features three selectable light distribution patterns (Standard, Even, and Center-Weighted) alongside advanced thermal cut-out protection to prevent overheating during continuous firing. Operating as a Wireless Commander unit, it can control off-camera flashes across 3 groups (A, B, C) and 4 channels, or function as an optical slave unit. Additional features include Auto FP High-Speed Sync, stroboscopic repeating flash (1–100 Hz), manual power control down to 1/128, a backlit LCD panel with a physical selector dial, and automatic color filter detection.

Key Features & Performance Highlights

High-Output i-TTL Performance: Guide number of 111.5′ at ISO 100 (35mm) with full i-TTL metering compatibility for FX and DX formats.

Wide Auto Zoom Coverage: Automatically zooms from 17-200mm (FX) with wide-panel expansion down to 12mm.

Advanced Wireless Commander Mode: Controls multiple off-camera CLS Speedlights across 3 distinct groups and 4 channels.

Full Bounce & Swivel Articulation: Tilts down to -7° and up to 90°; swivels a full 180° left and right.

Thermal Cut-Out & Fast Recycling: Enhanced thermal management system prevents overheating, delivering fast 2.3–4.5 second recycle times on 4 AA batteries.

Technical Specifications

Device Type: On-Camera / Off-Camera i-TTL Speedlight

System Compatibility: Nikon Creative Lighting System (CLS) i-TTL

Guide Number: 111.5 ft / 34 m at ISO 100 (35mm Position) | 157.5 ft / 48 m at ISO 200

Flash Head Coverage: 17 to 200 mm (FX Format) | 12 to 200 mm (DX Format)

Wide Panel Coverage: Extends down to 12 mm (FX) / 8 mm (DX)

Bounce / Swivel Capability: Tilt: -7° to +90° | Swivel: 180° Left to 180° Right

Wireless Operation: Commander Mode (3 Groups, 4 Channels) & SU-4 Optical Slave Mode

Exposure Control: i-TTL, Manual (1/1 to 1/128 in 1/3 EV Steps), Stroboscopic Repeat (1–100 Hz)

Sync Modes: Front Curtain, Rear Curtain, Slow Sync, Red-Eye Reduction, Auto FP High-Speed Sync

Power Source: 4x AA Batteries (Alkaline, NiMH, or Lithium)

Recycle Time: Approx. 2.3 to 4.5 Seconds (Depending on Battery Chemistry)

Flash Duration: 1/880 to 1/38,500 Second

Physical Mounting: Locking Hot Shoe Mount

External Power Port: Compatible with SD-9, SD-8A, and SK-6 Power Packs

Dimensions (W x H x D): Approx. 3.1 x 5.7 x 4.4 inches / 78.5 x 145.0 x 113.0 mm

Weight: Approx. 14.8 oz / 420 g (Without Batteries)