The Nissin i40 Compact Flash for Micron 4/3rds Cameras is a specially designed shoe-mounted, compact flash unit that is ideal for Four Thirds cameras featuring TTL functionality. With a guide number of 131' at ISO 100 and in the 105mm position, this unit offers an excellent coverage. You can also use this unit for video sessions, since it is provided with LED light that comes with 9 output levels. Additionally, this flash head can tilt upwards 90° and can rotate 180° in both directions, providing complete 360° coverage. With its full manual control features and a range of modes, this unit is the best choice for a professional photography.