canon st e3 rt speedlite transmitter 5743b002 studio depot
for speedlite 600ex rt and 430ex iii rt flashes two way transmission up to 98 4 away compact design 8 types of custom functions e ttl ii flash manual flash stroboscopic auto external flash metering
type radio transmissions wireless speedlite transmitter transmission range approx 98 4 ft 30m flash control ratio control 1 8 1 1 8 1 power 1 2 stop increments coverage flash coverage transmission angle 360 degrees all around power source 2x aa lrg alkaline batteries ni mh and lithium batteries can also be used battery life approx 10 hours continuously when using aa lr6 alkaline batteries at a room temperature of 73 f 23 c dimensions 2 65 x 2 42 x 3 05 67 4 x 61 5 x 77 4 mm
{'type': 'radio transmissions wireless speedlite transmitter', 'transmission range': 'approx 98 4 ft 30m', 'flash control': 'ratio control 1 8 1 1 8 1 power 1 2 stop increments', 'coverage': 'flash coverage transmission angle 360 degrees all around', 'power source': '2x aa lrg alkaline batteries ni mh and lithium batteries can also be used battery life approx 10 hours continuously when using aa lr6 alkaline batteries at a room temperature of 73 f 23 c', 'dimensions': '2 65 x 2 42 x 3 05 67 4 x 61 5 x 77 4 mm'}