• Ultra-compact, ultra-lightweight, high-performance flash unit.
  
• Vertical bounce capability up to 90 degrees provides a wide range of picture-taking options.
  
• Flash coverage can be switched between Normal (28mm full-frame equivalent, max. Guide No. 72 ft./22m at ISO 100) and Tele (50mm full-frame equivalent, max. Guide No. 89 ft./27m at ISO 100).
  
• Slave function allows the flash to be triggered wirelessly (when used with an EOS DSLR with a master function).
  
• Flash release function triggers the camera wirelessly from the flash on a 2-second delay, allowing the flash to be repositioned to illuminate the subject.

Type
On-camera, E-TTL II/E-TTL autoflash Speedlite

Compatible Cameras
Type-A EOS cameras (E-TTL II/E-TTL autoflash)

Guide Number

Flash Coverage
EF lens: 28mm/50mm

EF-S lens: 17.5mm/31.3mm

Manual switching

Recycling Time
1) Normal flash: Approx. 0.1 - 3.9 sec. / Lamp lights

2) Quick flash: Approx. 0.1 - 2.6 sec. / Lamp blinks at 8 Hz (with size-AA/LR6 alkaline batteries)

Flash Range
Normal Flash

AF Assist Beam
Intermittent flash firing system

Effective range:

At center: Approx. 13.1 ft./4m

Periphery: Approx. 11.5 ft./3.5m (in total darkness)

Compatible with model EOS 5D Mark II and later. Available via firmware update for: EOS-1Ds Mark III, EOS-1D Mark III, EOS 40D, EOS 50D, and EOS Rebel XS.

Bounce / Swivel
Up: 60°, 75°, 90°

Custom Functions
1) C.Fn-01: Auto power off (Enabled/Disabled)

2) C.Fn-06: Quick flash w/continuous shot (Disabled/Enabled)

3) C.Fn-10: Slave auto power off timer (60 minutes/10 minutes)

4) C.Fn-11: Slave auto power off cancel (Within 8 hours/within 1 hour)