Ultra Wide, High Power, Compact Underwater Strobe Achieved an increades GN22 with the same compact size as the previous model (INON S-2000). A high-perfomance fly-eye dome to dramatically increase beam angle underwater. Large wheel dial for operability, easy to see phosphorescent panel. Double O-Rings greatly reduce the risk of flooding. Compact body yet delivers GN22 Equipped with a fly-eye dome lens enabling super wide underwater beam angle of horizontal 140°×vertical 100° Reliable and proven "S-TTL Auto" and 12-step "Manual Flash Large wheel dial for dramatically improved operability. A phosphorescent panel for easy readability Double O-rings greatly reduce the risk of flooding Front positioned base contributes more flexible lighting Operates on four AA batteries, readily available and reasonably priced Compatible with various strobe dome filters Supports "Quick Holder" for easy one-touch attachment/detachment Compact yet Powerful GN22 Despite of compact body, the S-220 spreads high-power GN22. The full-scale performance coupled with a wide underwater beam angle provides unparalleled performance as a main strobe in all areas, regardless of whether for wide-angle or macro photography or compact digital camera or SLR camera. Super Wide Beam of 140° Horizontal x 100° Vertical Underwater Created by Fly-eye Dome Lens A precisely calculated and uniquely designed fly-eye dome lens for the light-emitting part attains extraordinary underwater beam angles of 140° horizontally × 100° vertically with minimal light distribution Variation. This wide beam angle perfectly fills the "UWL-95S XD" + "Dome Lens Unit III" underwater coverage of horizontal 140° x vertical 100° (at 4:3 aspect ratio), enabling a single S-220 strobe to illuminate the entire image. Reliable "S-TTL Auto" and 12-step "Manual Flash" Equipped with reliable and proven INON original high-precision automatic "S-TTL Auto" flash control system and 12 step "Manual Flash" function with -0.5EV. increment. The S-TTL Auto system can be used not only with camera's built-in flash but also with INON original TTL converter equipped with INON housings, "X-2 R6 Mark II","X-2 R6" and "X-2 R5" for even more precise TTL system. You will never miss a shutter chance. Large Wheel Dial for Greatly Improved Controllability and Phosphorescent Control Panel Improves Readability Redesigned large control wheel and switches significantly improve operability. In addition, the rear control panel is white-based highly illuminant phosphorescent material, ensuring easy-to-read usability both during day and night diving. Double O-rings Significantly Reduce Flooding Risk Ball adapters such as the "Z Adapter MV" and "Direct Base Ⅲ" is located forward close to the light-emitting surface, instead of rearward in the previous models not let an optical cable to interfere lighting flexibility. Operates on 4 Readily Avaiable, Inexpensive AA Batteries Various Dome Filters The S-220 strobe is equipped with a bayonet mount to use various dome filters.Packaged dome filters are "Strobe Dome Filter S [SOFT]" which increases strobe beam angle to horizontal 150° x vertical 110° while reducing light intensity by -0.5EV. and "Strobe Dome Filter [ND]" which reduces light intensity by -4EV. specifically for macro imaging.In addition, two optional strobe color filters are available: Strobe Dome Filter S [4900K] and Strobe Dome Filter S [4600K], which warms native strobe color temperature 5500K to either 4900K or 4600K.

The Pro Max has the highest power output of the new Retra Flash Series, a fresh OLED back panel display and offers the highest level of versatility that is appreciated by all underwater photographers. Engineered to Perfection For over a decade, a group of engineers and underwater photographers have teamed up with a single goal in mind: develop a true lighting tool for underwater photography. To reach this goal, we continuously examined feedback from photographers during every step of the development process. The end result is a travel friendly strobe that delivers top-tier performance in any lighting condition. So, whether you're a professional or just diving into the world of underwater photography, the Retra Flash will be your trusted companion on all your underwater adventures. 4th Generation of Underwater Strobe Technology With our 4th generation series, we listened to all your comments and made changes to the Retra Flash to better suit your needs. Electronics were completely redesigned with efficiency and performance in mind 4th Gen. Retra Flash uses less power for the same light output Optical triggering system is more reliable and able to read optical input even from sub-optimal fiber optic cables. Intuitive Back Panel Controls We've spent hundreds of hours analyzing feedback from photographers on the field and tweaking our designs to bring you a back panel you are immediately familiar with. We're also introducing a brand new innovation that is the centerpiece of the new Retra Flash Pro Max. The OLED display shows relevant information based on selected mode. The information is uncluttered and clearly displayed - even in sunny shallow waters! Information that can be seen on the display: Current mode Power setting Battery life indicator Capacitor recycle indicator And more! A reliable power source is the key Our 4th generation Retra Flash models have a completely redesigned battery compartment that can now hold 8x AA cells without the need for a separate battery compartment, when using the Booster. The Retra Flash is also the only underwater strobe with a built-in leakage detection system that warns you if water gets into the battery compartment. 

The Weefine WFS02 ring flashes have been specifically designed for underwater use to provide colourful and natural wide-angle illumination . A professional-grade round flash tube and powder-coated reflector perfectly produce a soft, blindingly warm 5500K light. The flash has a very short flash recycle time of 0.9 seconds at full power. In S2 mode, it can fire very quickly at all power levels in succession. In S2 mode it masters pre-flash suppression and in Sync mode the flash output is automatically adjusted (TTL mode of the camera).