Guide Number : 38/125 (at 35mm) to 56/184 (at 105mm) (ISO 100, m/ft.)
Electronic Construction : Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry
Flash Exposure Control : Flash exposure control: i-TTL Balanced Fill-Flash with CLS compatible cameras, D-TTL with digital cameras not compatible with CLS, TTL Auto Flash with many film SLRs
Flash head tilts down to -7 degrees or up to 90 degrees
Lens Coverage : Automatic 24 to 105mm zoom; 14/17mm with built-in wide flash adapter; 14mm with Diffusion Dome SW-10H
Minumum Recycling Time : Approx. 2.7 seconds (manual, w/R6 (AA) - size Ni-Cd or Ni-MH batteries, with Quick Recycle Battery Pack SD-800), Approx. 6 sec. (manual w/FR6 (AA - size Lithium batteries)
Flash Duration:
- 1/1050 sec. at M 1/1 (full) output
- 1/1100 sec. at M 1/2 output
- 1/2700 sec. at M 1/4 output
- 1/5900 sec. at M 1/8 output
- 1/10900 sec. at M 1/16 output
- 1/17800 sec. at M 1/32 output
- 1/32300 sec. at M 1/64 output
- 1/41600 sec. at M 1/128 output
Required Power Source : Four 1.5V LR6 (AA - size alkaline), 1.2V KR-AA (AA - size NiCd) or 1.5V FR6 (aa - size lithium) batteries; Quick Recycle Battery pack SD-800 holds a fifth AA - size battery for faster power recycling, DC Unit SD-7 (optional *1 *2); Battery Pack SD-8A (optional)
Dimensions (W x H x D) : approx.2.8 x 5.0 x 3.6 in. (70.6 x 127.4 x 91.7 mm)
Weight : 350g
Optional Power Supply : SD-7 or SD-8a battery pack
Minimum Number of Flashes : approx. 130
Wireless Flash Modes:
- Off
- Master
- Master (RPT)
- Remote
- SU-4
Wireless Communication Channels : Four: 1, 2, 3 and 4 Channels
Wireless Groups : Three: A, B and C