The essentials:

• Leica's new radio flash control - innovative, future-proof, compatible.
• 2.4 GHz band
• Up to 100 meters transmission distance
• Control up to three groups separately
• Supports TTL, high-speed synchronization up to 1/8,000 s
• Future-proof: Update the firmware via a Micro SD / SDHC card

Product description:

The SF 60 is not necessarily tied to the camera. Instead of using it as an attachable flash, you can also use the flash unit as a remote flash and control it in combination with the SF C1 to illuminate the subject from any angle. The SF C1 remote control allows you to go far beyond what is possible with a single SF 60. With the SF C1, which works with radio frequencies in the 2.4 GHz band, flash units can be organized in groups on up to eight channels. The flash units, which can be up to 100 m away from the SF C1 mounted on the camera, can be controlled either together or separately in up to three groups with different settings. For example, you can combine a flash with a beauty dish with a spotlight and with other flashes for brightening shadows and illuminating the background and regulate their output separately.