Color and Auto Rotate Display bears simple and user friendly features of our design concept The Color Display will automatically follow camera angle in different position and six icons interface gives user friendly operation and representing different menus – Auto, TTL, Manual/Av, Multi, Wireless TTL (Master/Remote) and Customer Setting. Various Functions – TTL, Manual/Av, Multi Flash TTL: Supports Sony ADI / P-TTL. Flash light is automatically controlled by the camera but the flash exposure value can be compensated. Manual: Flash power can be adjusted manually at 22 levels, from full power to 1/128 power at every 1/3 stops. The appropriate distance to the subject is shown in the display in accordance with the aperture value set on the camera. Av priority: The flash light can be automatically controlled by the photo sensor built-in the flash unit instead of TTL metering. The F. Stop can be set from F1.4~F16. The distance at the F-stop set on the flash and camera is shown in the display. Multi Flash: The power ratio can be set from 1/8 to 1/128. The best solution for off camera flash technique The Di866 Wireless TTL system supports Sony ADI / P-TTL. Di866 can be used jointly with Sony original flash as either Master and Remote (Slave). The Di866 also supports digital (pre-flash system) and analogue (film type camera’s flash and/or studio flash under both of Manual and Av. priority mode. Quick Loading Battery Magazine. The Di866 has battery magazine system same as Di466. A convenient battery magazine provides all fo External Service Boxur AA-size batteries slot in the same direction, so that the batteries can be correctly inserted without fail even in the poor light condition.