The Speedlite EL-10 joins the Canon Speedlite family as a mid-range portable flash unit, replacing the Speedlite 430EX-III RT. This flash is for those that want to step up from more basic flash units, expand their capabilities and really get into flash photography. Like the previous Speedlite 430EX-III RT, this Speedlite packs about 1 stop less total flash power than the high-end Speedlites EL-5 and EL-1. What it lacks in power is offset by its communication abilities being able to control up to 15 additional compatible Speedlite units. Additionally, the new Multi-function connector at the EL-10’s “foot” enables advanced communication on multi-function shoe equipped cameras1 providing more customization and control to be shared between the flash and camera. Important: because of the transition to Canon’s Multi-function accessory shoe, please be aware that Speedlite EL-10 cannot be mounted or used on Canon cameras with other accessory shoe designs.