Backscatter Mini Flash 3 Underwater Strobe MF-3 The Backscatter Mini Flash 3 (MF-3) is a high-performance compact underwater strobe designed for serious macro and close-focus shooters. It combines powerful output, fast recycle times, a bright focus light and intuitive controls in a travel-friendly body. The latest generation now features full automatic TTL support for Olympus / OM System and Sony cameras, making it easier than ever to nail perfect exposures. Key Features NEW: Automatic TTL for Olympus / OM System & Sony cameras when used with compatible flash triggers High-speed sync (HSS), manual and remote modes for advanced lighting control Depth rating to 100 m / 330 ft for demanding dive conditions Guide number around f/18 – ideal for macro and close-focus wide-angle work Built-in 1,000 lumen LED focus / aiming light that matches the strobe beam Fast recycle time of roughly 1 second at full power with excellent battery life Uses a single 21700 lithium-ion battery (protected cell) for long runtimes Compact, machined aluminium housing that is lightweight in water and perfect for travel rigs Fully compatible with the Backscatter Mini Flash snoots, diffusers and accessory ecosystem In the Box Backscatter Mini Flash 3 (MF-3) Underwater Strobe 1" ball mount and/or YS mount (depending on configuration) Light pipe for optical remote triggering Spare O-rings and O-ring grease User manual and documentation Ideal For Macro and super-macro photographers who need a powerful but compact strobe Olympus / OM System and Sony shooters who want reliable TTL exposure automation underwater Travelling photographers who prefer lightweight, streamlined lighting systems If you want a small strobe that punches well above its size, with modern TTL support for Olympus, OM System and Sony plus full manual control for any camera system, the Backscatter Mini Flash 3 is an outstanding choice. Note: Battery and charger are not included. A protected 21700 lithium-ion battery and compatible charger are required.