The Nikon SB-800 is a powerful and versatile flash unit designed for use with Nikon digital SLR cameras. It provides photographers with a range of advanced features, including i-TTL flash control, wireless remote control, and a variety of creative lighting options. The SB-800 is ideal for professional photographers who need a reliable and high-quality flash unit for their work, and it is also a popular choice among amateur photographers who want to take their photography to the next level. With its durable construction and advanced features, the Nikon SB-800 is a must-have accessory for any serious photographer.