The compact and lightweight LEICA SF24D allows TTL-flash exposure control when used with the LEICA R8 or R9 as well as the LEICA M6 and M7 TTL-models or the M8 digital cameras. In addition, it supports automatic flash exposure control with all other LEICA M and R cameras with central X hot-shoe contact. All neccessary information such as film speed, aperture and distance is available in the LCD which can be illuminated on demand. Thanks to the two longlife Lithium batteries CR 123 a very compact design, fast recharging times, and a high number of flashes could be realised. In the TTL- and A-modes the flash indicator in the viewfinders of the LEICA R8, R9 and the LEICA M6 or M7 TTL-models enables the photographer to check the correct flash exposure immediately. Leica photographers' creative ambitions are satisfied by the option to utilize the flash exposure compensation feature. In the TTL and A-modes corrections of +/- 3 EV and 0 to -3 EV respectively are possible.