Backscatter Octo 3500 Wide Underwater Video Light

Bright, Bold, & Ready For Action

The Backscatter Octo 3500 Wide Video Light> is the perfect go-to travel friendly light for action cameras and compact camera rigs. With a powerful 3500-lumen, 100° beam, it delivers bright, even coverage that brings out rich color and fine detail in your footage.

A perfect pairing for wide angle action cameras and compact systems, the Backscatter Octo 3500 adds professional-level lighting without adding bulk. It’s just as capable on bigger camera rigs, either working as a low-profile focus light or for creative lighting when paired with accessories like color or the fluorescence Backscatter Video Light Excitation Filter.

With Backscatter’s signature octopus tentacle print, the Octo 3500 doesn’t just perform well—it looks awesome while doing it.

The small size of the Backscatter Octo 3500 Wide Video Light makes it perfect for travel and action camera rigs, while the simple single-button control makes it easy to learn and use.

KEY FEATURES:

• 3500 Lumen Brightness
• 100º Wide Even Beam - Light Scenes with Wide Angle Lenses
• Three Power Levels
• Compact Size - Perfect for Travel
• Backscatter Color Filter System Compatible
• Enjoy the vivid colors of fluorescence with the optional Backscatter Video Light Excitation Filter
• Powered by two interchangeable protected 18650 batteries
• Simple Single Button Control
• 5000K Color Temperature
• CRI 90
• Triple O-ring Seal

The Backscatter Octo 3500 is an excellent video light for both macro and wide angle.
OM System TG-7 | 1/60 | ISO 100 | ƒ4.3

Pro Level Action Camera Lighting

The 100° beam of the Backscatter Octo 3500 makes it perfect for action cameras. Its wide, even, beam with natural-looking light falloff ensures all footage looks professionally lit right out of the camera. The small size of the Backscatter Octo 3500 Wide Video Light makes it a perfect for compact camera rigs, like the OM System TG-7, providing plenty of lighting power without adding a ton of bulk, complexity, and cost.

At 3500 lumens and a 5000K color temperature, the Octo 3500 delivers color close to natural daylight, enhancing the color of underwater video clips.


Compact, bright, and built for wide lenses used by action cameras— the Backscatter Octo 3500 is the perfect choice for professional grade lighting. When shooting wide angle, always use two lights to fill in gaps


Behind the scenes, the 100° wide and even beam angle will easily cover large scenes and subjects.

Your Creative Lighting Companion

More than just a wide video light, the Backscatter Octo 3500 is a great tool for creative lighting. It utilizes the Backscatter Color Filter System to create unique, colorful backgrounds, adding a unique twist to macro video. Use different colors to compliment subjects with backlighting and sidelighting. Pair the Backscatter Octo 3500 with the Remote Lighting Muck Stick for even easier remote lighting positioning.

The compact size and compatibility with creative lighting tools makes the Backscatter Octo 3500 the perfect companion for side and backlighting. Creative lighting has never been more convenient or easier.


The Backscatter Color Filter System adds another dimension of creativity for lighting by creating interesting, bold backgrounds and other lighting effects.

Unlock The Groovy Glow With Fluoro Filter

Fluorescence (often shortened to “fluoro") is a super fun way to get creative and weird with underwater image making. Fluorescence appears when a subject absorbs light at a particular blue wavelength, then emits it back, in bright, far-out neon colors. Fluoro offers a unique and striking look that stands out from conventional images bringing a fresh and vivid twist when compared to standard video clips.

Snap on the Backscatter Video Light Excitation Filter and the Backscatter Octo 3500 transforms into a blue light, allowing fluorescence to be seen. This makes it perfect not only for capturing stunning fluoro video, but also as a spotting light when hunting for fluorescing critters.


Fluorescence is a completely different take on video, by creating bright, vivid colors using a blue light that are otherwise unseen to the naked eye. The Backscatter Octo 3500 can be used as both a fluorescence video light or searchlight by snapping on the Backscatter Video Light Excitation Filter.
Sony a9 III | Sony 90mm Lens | 1/800 | ISO 600 | ƒ11

Shoot All Day With Swappable Batteries

The Backscatter Octo 3500 uses two Xtar 18650 4000mAh protected lithium ion batteries. Not only are these batteries packed with safety features, such as overcharge protection, they are easily swapped out between dives for easy all-day shooting.

We recommend traveling with an extra set of batteries per light for quick and easy swaps between dives.

At max power, the Backscatter Octo 3500 Wide Video Light has a max runtime of 70 minutes, 50 minutes of which is at full brightness 3500 lumens. After 50 minutes, the light ramps down in power enters safety mode for an additional 20 minutes of runtime. This way, the Backscatter Octo 3500 Wide Video Light will never leave you hanging on night dives or when you need it most.

Always be sure to bring a separate dive light when diving in dark conditions that require a torch, and never rely just video lights alone for general diving needs.


Using two protected 18650 batteries, the Backscatter Octo 3500 Wide Video Light can run continuously for 70 minutes. Batteries are easily swapped out between dives for all day shooting.

Convenient Focus Light Solution

The Backscatter Octo 3500 also operates as a powerful focus light. Its low-profile design keeps things streamlined, adding minimal extra weight and drag. The consistent, even beam makes it easy for your camera’s autofocus to stick to subjects in dark environments or provide extra light and contrast to lock-on to small or camouflaged critters.


The Backscatter Octo 3500 Wide Video Light fits easily on larger rigs. Its streamlined design makes it barely noticeable when used alongside strobes and other lighting.

Stay Dry with Triple O-ring Seal Security

The Backscatter Octo 3500 Wide Video Light takes protecting batteries seriously, with a triple sealed battery compartment. Two sealing o-rings add double the protection against leak-causing hair, lint or debris, while the sand gasket prevents fine sand and grit built up. With proper maintenance, this system will keep the Backscatter Wide Video Light reliably operating in even the harshest conditions.

Single Button. Total Control.

The Backscatter Octo 3500 uses a simple single-button interface making it one of the easiest underwater lights to use. Power it on with five quick presses, tap to cycle through three brightness levels or standby mode, and hold to power off.

Even with thick gloves, the control is fumble-free and intuitive, perfect for divers of all experience levels in any environment.


In darker conditions, the Backscatter Octo 3500 can operate as a primary light for capturing macro photos.
OM System TG-7 | 1/60 | ISO 100 | ƒ4.3

Individually Calibrated Temperature for Consistent Lights

The color temperature of each light is individually calibrated at the factory, ensuring any two lights match perfectly when paired together. Each light is calibrated to 5000K which brings great saturated color reproduction to all video clips.

Be Easily Seen with SOS Mode

Hold the main button to activate SOS Mode—a bright, continuous light ping designed for emergency signalling or marking a location. This mode provides hours of runtime on full charge, ensuring highly visible and recognizable light is seen for extended periods of signalling time.

Simple, Clear Battery Indicator Light

The Backscatter Octo 3500 utilizes an indicator LED to display the power level of the light using three different colors, green, yellow and red. Green indicates the light is at full power to 50%, while yellow is under 50%. Red indicates the battery is low and should be swapped. This instant, clear feedback makes sure the Backscatter Octo 3500 Wide Video Light never leaves the user in the dark.


The indicator light will change color from green, to yellow, to red based on remaining battery charge.


As a focus light, The Backscatter Octo 3500 helps autofocus lock on to the smallest critters.
OM System TG-7 | 1/60 | ISO 400 | ƒ18