Specifications: Type: On-camera, E-TTL II/E-TTL autoflash Speedlite
Flash Coverage:
- EF lens: 28mm/50mm
- EF-S lens: 17.5mm/31.3mm
- Manual switching
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)
Transmission Range: Reception of all channels via light pulse signal reception on the master unit
Reception Angle: ±45° horizontally and ±25° vertically, facing the transmitter on the master unit
Compatibility: Type-A EOS cameras (E-TTL II/E-TTL autoflash)
Guide Number: Normal (24mm): 22 (ISO 100 (m)), 72 (ISO 100 (ft.))
Tele (50mm): 27 (ISO 100 (m)), 89 (ISO 100 (ft.))
Specifications: Type: Ring Lite, twin circular flash tubes, and separate Controller Unit
Flash Control System:
Control in E-TTL Mode: FP Sync, FE lock, Flash +/- compensation, Flash Exposure Bracketing
Control in Manual Mode: Flash +/- compensation
Ratio Control in Manual: L:R tubes (A:B); 8:1 - 1:1 - 1:8 in 1/2-stop increments
Custom Functions: Twelve (in addition to any on camera), set on flash LCD; three Personal Functions
External Power Source: Compact Battery Pack CP-E4
Guide Number: 45.93' (14 m) ISO100
34.45' (10.5 m) ISO100
Recycling Time: Approximately 0.1 - 5.5 seconds
Power Source: 4 AA batteries in Controller (Alkaline, NiCd, Lithium and Ni-MH type AAs are OK)