Description
The OLOONG speedlight SP-690 is a high-performance flash unit with a large guide number of 50 (ISO 100m) (at the 180mm zoom position), the available zoom positions to be automatically adjusted at standard illumination pattern intensity are between 24mm and 180mm. It can serve as an on-camera flash as well as a master unit or a slave unit in a wireless, multiple-speedlight system.
Main Features
22 level light quantity output control
Support multi-flash lighting application (S1/S2 mode)
LCD display
Compatible with I-TTL autoflash
Overheating protection
Power zoom function
Support front-curtain/rear-curtain sync