Nikon's new SB-27 AF Speedlight, the latest in Nikon's growing system of AF Speedlights, is perfect for advanced amateurs and professional photographers who enjoy the advanced features of their camera's built-in Speedlight, but are ready for more power and control. Featuring a unique built-in bounce flash adapter, the compact SB-27 will operate with a wide variety of Nikon SLR cameras, including the N50, N6006, N70, N90s and F5. FEATURES INCLUDE: Automatic TTL controlled fill-flash operation 3D multi-sensor balanced fill-flash with F5, N90s, N70 and D-type AF Nikkor lenses Matrix balanced fill-flash with F4, N6006 and N50 with an AF Nikkor lens Rear curtain sync flash Automatic power zoom coverage from 24mm to 50mm in horizontal position; 35mm to 70mm in vertical position Flash head rotates through 180ø arc LCD panel reveals operating status Recycling time approximately up to 5 seconds Guide number (ISO 100 feet) 112 with zoom set in 50mm position.