Jam-packed with features and functions, the YN568EX III Speedlite from Yongnuo is a stellar addition to nearly any lighting kit. This model is directly compatible with Canon's E-TTL / E-TTL II system, permitting on-camera use with automatic exposure capabilities and high-speed sync. It can also function as an optical TTL master for other Canon-compatible flashes or as an optical TTL slave for either Canon or Nikon systems. It is quite powerful as well with a rated guide number of 190' at ISO 100 and 105mm and is versatile thanks to a head that can tilt from -7 to 90° and rotate 270°.
For controlling light, the flash has a zoom head able to be set from 24-105mm along with a wide-angle panel that optimizes coverage for focal lengths as wide as 14mm. This unit also has a fast recycle time of just two seconds. Operation has been improved as well with an AF-assist light and audio signals available. Additionally, it has a 2.5mm sync port and a USB interface for firmware updates.
Features
- Compatible with Canon E-TTL / E-TTL II
- Guide Number: 190' at ISO 100 and 105mm
- Zoom Range: 24-105mm (14mm with Panel)
- Tilts -7 to 90° and Rotates 270°
Specification
| Guide Number | 190.29' / 58 m at ISO 100 (105 mm Position) |
| Coverage | Full-Frame 24 to 105 mm 14 mm (with Wide-Angle Adapter) |
| Auto Zoom Head | Yes |
| Bounce Head | -7 to +90° |
| Swivel Head | 270° |
| Recycle Time | Approx. 2 Seconds |
| Secondary Illumination | None |
| Exposure Control | Canon E-TTL / E-TTL II, Manual |
| Flash Modes | Hi-Speed Sync, Second-Curtain Sync |
| Power Range | 1/1 to 1/128 |
| Flash Compensation | -5 to +5 EV (1/3 EV Steps) |
| Wireless Operation | Optical Pulse (TTL/Manual) Up to 82.02' / 25 m |
| Wireless Channels | 4 |
| Wireless Groups | 3 |
| Remote Timing Modes | Instant Sync Skip Preflash |
| Internal Power | 4 x AA (Alkaline, NiMH) |
| External Power Pack Compatible | No |
| Mount | Shoe |
| Off-Camera Terminal | 2.5 mm |
| Dimensions (W x H x D) | 2.4 x 2.9 x 7.5" / 60 x 73 x 190 mm |
| Weight | 12.35 oz / 350 g |
| Package Weight | 1.225 lb |
| Box Dimensions (LxWxH) | 8.35 x 3.95 x 3.3" |