The flagship of the Metz compact flash series presents itself as simple to operate and loaded with special functions. Available with a standard foot, or as a kit including the SCA 3002 adapter for Canon, Minolta, Pentax and Nikon SLR cameras, the 54MZ-4 successfully integrates High Speed Synchronization into a flash unit with many other special functions. The 54MZ-4 additionally provides the D-TTL mode as well as the 3D multi-sensor fill-in flash in D-TTL mode and TTL flash exposure correction (Nikon specific). This powerful flash unit distinguishes itself additionally with its simple, elegant operating concept: just 2 function keys and 1 adjustment wheel provide for complete control. The illuminated LCD panel is large and easy-to-read and only displays the pertinent mode information. A special feature of the 54MZ-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. The 54MZ-4 has a built-in secondary flash that can be used as fill to produce wraparound lighting when the main flash, with its built-in tilt/swivel function, is bounced off a wall or ceiling. The main flash’s Auto Zoom feature works with lenses in the 24-105mm range, producing a Guide Number of 177 (feet) at ISO 100 at maximum zoom setting and a Guide Number of 131 (feet) at ISO 100 at 50mm.