The LEICA SF 24D electronic flash unit is designed to be compact and also to provide the maximum distance between the flash reflector and the camera lens, which minimizes the risk of red eye when photographing people and animals. With the LEICA M7 and the LEICA M6 TTL the light output is controlled by its TTL flash exposure meter; with other Leica M models it is controlled by the automatic flash itself. In automatic mode, six automatic flash apertures 2.0/2.8/4.0/5.6/8/11 are available. An override switch allows the exposure to be varied by plus/minus three stops. All settings and other information are legibly displayed on the LEICA SF 24D's illuminated LCD. These include an exposure confirmation indication and flash ready light which are simultaneuously displayed in the viewfinder of the LEICA M7 and LEICA M6 TTL.