Versatile, compact, and wireless TTL-enabled, the SF 60 is a flexible flash well-suited for select Leica M, S, and SL-series cameras. Despite its portable size, this flash offers a guide number of 197 at ISO 100 and the 200mm setting, and has a zoom head with a total range of coverage from 24-200mm. It can also be expanded to 16mm with the built-in diffusion panel. Additionally, hybrid stills video shooters can benefit from this flash as well thanks to a built-in LED video light for constant illumination. The flash head s design permits up to 90° upward tilt and 180° rotation in both directions for full bounce flash control. Sync features, such as slow, high-speed, first-, and second-curtain sync are also supported for creative shooting. The flash s design offers seamless operation via rear dials and color LCD screen and it accepts either 4 AA batteries or an optional external power pack.