Pocket-Sized Lighting for Better Photos 

The Westcott S18 Mini Flash is a compact and simple on-camera flash built for photographers who want better light without the bulk or price tag. At just 3.5 oz, it slips into any camera bag pocket and mounts to most Canon, Nikon, Sony, Fujifilm, Panasonic Lumix, Olympus, and Leica cameras via a universal single-pin hot shoe. 

More Light Where You Need It 

With 18Ws of output and a Guide Number of 16 (ISO 100), the S18 produces significantly more light than your camera's built-in flash, giving you the reach you need for indoor portraits, family gatherings, and low-light scenes. 

Easy to Control 

The S18 has intuitive onboard controls with a clear screen for quick access to the flash settings. Manual power adjusts across 19 steps in a 7-stop range (3.0-9.0) with 0.3-stop increments, making it easy to dial in the right exposure. Recycle times range from 0.01 seconds at lower power to 2.5 seconds at full power, keeping you ready for the moment. 

Bounce Flash or Direct Flash 

The S18 features a tilting flash head for creative control over how your light falls. Adjust the flash head from -3° to 72° to point it straight ahead for direct fill flash with sharp definition, or tilt it toward a wall or ceiling to bounce soft, even light across your subject for portraits that look naturally lit. Optical slave modes (C1, C2) support multi-flash configurations for more advanced setups.  

Built-In Rechargeable Battery 

Up to 500 full-power flashes per charge means you can shoot all day without worrying about running out. The S18's internal 3.7V 1250mAh lithium battery charges via USB-C in about 2.5 hours. No AA batteries to stock up on, and no need to stop shooting when the battery runs low. The S18 also supports charging while in use. 

Ready to Shoot, Right Out of the Box 

Five color gels are included (Diffusion, CTO, 1/2-CTO, Yellow, and Red) for experimenting with creative lighting effects. At 2.4 x 2.1 x 0.9”, the S18 is small enough to take on any shoot. A travel case and USB cable are included as well, making the S18 a grab-and-go solution whether you're just starting out or adding a lightweight backup flash to your kit.

Features:

• Pocket-sized manual on-camera flash designed to improve photos when natural light isn’t enough 
• Ultra-compact and lightweight at just 3.5 oz (100g) making it easy to carry in any camera bag or pocket 
• Universal single-pin hot shoe design compatible with most Canon, Nikon, Sony, Fujifilm, Panasonic Lumix, Olympus, and Leica cameras 
• 18Ws flash output with GN16 (ISO 100) provides brighter illumination than built-in camera flashes for indoor photos and portraits 
• Tilting flash head (-3° to 72°) enables direct fill flash or bounce lighting for softer, more natural indoor photos 
• 19-step power adjustments across a 7-stop energy range (3.0–9.0) with fine 0.3 increments allow precise control over flash brightness 
• Built-in 3.7V 1250mAh rechargeable lithium battery with USB-C charging eliminates the need for disposable batteries 
• Up to 500 full-power flashes per charge keeps you shooting longer without interruptions 
• Fast recycle times from 0.01–2.5 seconds help you stay ready for the next shot 
• Includes 5 color gels including Diffusion, CTO, 1/2-CTO, Yellow, and Red for experimenting with creative lighting effects 

Technical Specs:

• 18Ws Watt-seconds
• -3º ~ 72º Adjustable Head
• 7-Stops (3.0–9.0) Energy Range
• 0.01 - 2.5s Recycle Time
• t0.1: 1/810 - 1/27000s, t0.5: 1/2500 - 1/50000s Flash Duration
• ± .3 Flash Increments
• Manual, Optical Clients (C1, C2) Flash Modes
• Optical Sensor
• Two (C1, C2) Optical Sensor Modes
• Up to 1/250 (native) Sync Speed
• 7000K ±200 Color Temperature 
• Line Flash Tube
• No User Replaceable Flash Tube
• 2.4 GHz Wireless Radio Frequency
• 3.5mm Port Type
• Passive Cooling
• Auto Memory Recall
• Auto Sleep
• LCD Display
• Lithium Battery (Non-removable) Power Source
• 3.7V 1250mAh 4.6Wh Battery Capacity
• 3.7V Battery Voltage
• USB-C Charging; 2.5 Hours to Full Charge Battery Recharge Time
• Up to 500 Full-power Flashes Per Charge
• Digital Icon Battery Indicator
• USB-C Plug; Charging Only
• 14 - 104ºF (-10 - 40ºC) Operating Temperature Range
• Hot Shoe Mount Type
• CE, Rohs Certifications
• 60° Beam Angle
• Heat Protection
• 5 Gels (Diffusion, 1/2-CTO, CTO, Yellow, Red)

Compatible With:

Cameras:

• Multi-brand Camera Compatibility (Camera must have center hot shoe pin.)

Dimensions:

2.40 x 2.09 x 0.94"

Weight:

0.22 lbs

Materials:

Electronics, Metal, Plastics, Rubber

Care Instructions:

• Wipe with a dry cloth as needed. 
• Keep away from fire, water, and moisture. 
• Do not submerge in water.
• Avoid drastic temperature changes before, during, and/or after use.
• Do not overtighten shoe lock dial when mounting to camera.
• Ensure the flash is securely mounted before use.
• Do not attempt to modify any Westcott products. Contact Westcott for assistance.

Manufacturer SKU:

8218

In The Box:

Westcott S18 Mini Flash
5x Color Gels (Diffusion, 1/2-CTO, CTO, Yellow, Red)
USB Cable
Travel Case

 

 

Note: Certain Canon camera models are manufactured without a center hot shoe pin. Use of the Canon AD-E1 Hot Shoe Adapter is required for proper flash functionality on these models.