Godox TT685II-O 2.4GHz Wireless TTL HSS 18000s Flash Speedlite for Olympus Features 1. TCM instant conversion: TT685II adds TCM function to support real-time conversion from TTL mode to manual mode. At the same time, this feature helps you lock in the proper exposure value, ensuring that the light is accurately expressed in every fire. 2. Built-in 2.4G wireless X system: Built-in Godox 2.4G wireless X system, integrated transceiver, 100 transmission distance, flexibly used in different occasions. By purchasing the Godox X system wireless flash trigger (not included), you can realize remote control and flash triggering, expanding more possibilities for image creation. 3. Powerful functions: TT685II has HSS (up to 18000s), FEC, FEB, rear curtain sync and other functions in TTL mode. In manual mode, there are 22 levels of power output from 11 to 1128 for you to adjust freely. Meanwhile, TT685II has two zoom modes: AutoManual. Flash coverage is 20-200mm. 4. External power interface: TT685II is equipped with an external charging interface, compatible with Godox external flash power box PB960 (sold separately), which greatly improves the performance of the flash, shortens the recycling time, and improves the battery life. It is suitable for wedding scenes, street fashion, news events and other changing scenes. 5. New changes & compatibility: The TT685II has been upgraded with a larger tilt angle, from -7 degrees to 120 degrees, and can be rotated 330 degrees. And adopts quick release lock design to ensure smooth installation. Specifications 1. Model: TT685II-O 2. Compatible cameras: For Olympus SLR cameras (TTL auto flash) 3. Guide 58190: ISO 100 in metersfeet at 105mm focal length) 4. Flash coverage: 20-200mm (14mm for wide panels) 5. Auto zoom: Automatically sets flash range to match lens focal length and image size) 6. Manual zoom: Rotatetilt the flash head, from -7 degrees to 120 degrees, can rotate 330 degrees 7. Flashing time: Less than 1.2ms 8. Exposure control