Speedlite 320EX is a versatile compact unit which serves the purpose of an on-camera mounted flash as well as a off-camera slave unit which can be controlled by EOS cameras that has an integrated Speedlite transmitter. The flash unit can, additionally, trigger the camera shutter with a 2-second delay, to reposition the flash if required. It has a normal mode guide number of 79/24m at ISO 100 providing sufficient coverage for a 24mm full frame lens and a tele mode guide number of 105/32m at ISO 100 providing coverage for a 50mm or longer lens.
In a first for Canon Speedlites, the versatile new Speedlite 320EX features an LED light on the front of the flash body that can be used to illuminate nearby subjects in dim light. The light is ideal for video recording but can also be used as a modeling light or as an AF assist beam during Live View shooting. When used with EOS DSLRs that have integrated Speedlite transmitters, the Speedlite 320EX can be used as a wireless slave unit positioned off-camera. A flash release function further facilitates wireless flash shooting by enabling the shutter to be released remotely from the Speedlite 320EX with a two-second delay, which gives the photographer time to re-aim the flash if necessary. The Speedlite 320EX combines rich bounce functionality with high performance, ensuring smooth, professional-looking results.
Flash coverage and guide number can be changed manually by extending or retracting the flash head. The Normal position provides wide coverage equivalent to a 24mm lens (full-frame) with a guide number of 79 (ft.) / 24 (m) at ISO 100. The Tele position boosts the guide number to 105 (ft.) / 32 (m) at ISO 100 while providing coverage for lenses 50mm and longer (full-frame).
On-camera, E-TTL II/E-TTL autoflash Speedlite
Type-A EOS cameras (E-TTL II/E-TTL autoflash)
EF lens: 24mm/50mm
Number of Flashes
Approx. 180 - 1000 flashes, with fresh AA-size alkaline batteries
High-speed sync (at 1/250 sec.)
AF Assist Beam
Intermittent flash firing system
*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.
External Power Source
External power supply accessories cannot be used.
Approx. 2.8 x 4.5 x 3.1 in./70.0 x 115.0 x 78.4mm
9.7 oz. / 275g