The Sigma EF-500 DG ST NA-iTTL Shoe Mount Flash is a high-quality flash unit designed for Nikon cameras, with a guide number of 50m. It features TTL functionality for automatic exposure control and is suitable for digital cameras. The hot shoe mount interface allows for easy attachment to the camera, making it a versatile accessory for photographers looking to enhance their lighting setups. With the Sigma brand known for producing reliable and durable camera equipment, this flash unit is a dependable option for Nikon i-TTL users.

**This item like new never used, comes with original manifacturers box and an adaptor, and + a quality case, I think manual is missing. Please check carefully before you ordering.