The Metz Mecablitz 64 AF-1 digital is a powerful and versatile flash unit designed for use with a range of digital cameras. It features a high guide number of 64 at ISO 100, making it ideal for use in low light conditions or when shooting at a distance. The flash also offers a range of advanced features, including TTL metering, high-speed sync, and wireless remote control, allowing photographers to achieve professional-quality results in a variety of shooting situations. With its durable construction and easy-to-use interface, the Metz Mecablitz 64 AF-1 digital is a must-have accessory for any serious photographer.