Shoot flattering portraits using bounced light Integrates with other Speedlites as part of the EOS family The guide number is the distance the flash can illuminate a subject.The higher the guide number, the greater the distance you can reach. This flash has GN 43 m at ISO 100 The LCD screen shows settings and shooting information at a glance, and is illuminated for low-light conditions Time taken to recharge flash after full discharge using Alkaline AA batteries approx. 3.2 sec Powered by 4 x AA batteries (not included) Take a new approach to lighting with a Speedlite flash thats powerful, versatile and portable. A movable flash head allows light to be bounced from large surfaces like walls or ceilings, creating soft, shadow-free lighting that's perfect for portraiture. The Speedlite 430EX III-RT can be fired while off-camera using radio-frequency or optical triggering, giving you more versatility and creativity on shoots. For radio-frequency triggering, the camera flash can be placed