Godox
Enjoy TTL-enabled and reliable wireless flash by picking up the X1T-O TTL Wireless Flash Trigger Transmitter from Godox. This 2.4 GHz X wireless system is compatible with Olympus/Panasonic cameras and flashes that support TTL for automatic exposure and metering, making it an excellent choice for shooters who need to work quickly. It also has an outstanding range of 328' and can be set to one of 32 channels for limiting interference with other nearby systems. Another huge benefit is the ability to control up to five groups at a time, or set the unit to ratio flash mode for three groups with varying power relative to one another.
Users will have access to many settings through the backlit LCD and can make adjustments to settings such as sync delay and triggering modes. Also, through TTL compatibility the system will support high-speed sync, flash exposure compensation, and flash exposure lock, among other settings. Beyond this, users will be able to easily mount their flash to the transmitter's top hot shoe, or you can connect a studio strobe via the PC sync terminal on the receiver or PC sync terminal on the transmitter. Additionally, it runs on two AA batteries and has a micro-USB port for firmware updates.