Metz Mecablitz 54 MZ-4

Metz Mecablitz 54 MZ-4 ... feature of the 54 MZ-4 is that the displayed focal length of the lens being used can be adjusted to match the format (35 mm, APS, Medium Format). Thanks to the high-speed synchronization "HSS" the flash can be used - where supported by the camera - with exposure times even shorter than the camera sync speed.

This is useful, especially to fill in the shadows in portrait photography outdoors and to make the subject stand out from an out-of-focus background.