Canon Speedlite 600EX II-RT

With a guide number of 60 / 197 (ISO 100, in meters / feet), the Speedlite 600EX II-RT features a built- in catchlight panel, a dot-matrix LCD rear panel, a selection dial, an indication of flash-readiness of both master and slave on the master flash’s display panel, as well as a dust- and drip-proof structure to provide a new level of performance and reliability for professional photographers. Supporting both radio and optical communication, it also comes bundled with a bounce adaptor and colour filters. When paired with the K407 battery pack (sold separately), the Speedlite 600EX II-RT achieves a maximum continuous flash output of 100 times.