Canon Speedlite 600 EX-RThttps://www.photocineshop.com/en/products/canon-speedlite-600ex-rt-VJQY9D?cat=336
As a Canon top-of-the-line flash, the Speedlite 600EX-RT takes the best features from existing models and adds functionality for enhanced digital photography.
The 600EX features a new wireless multiple flash system using radio wave communication that provides more precise control over as many as five groups of flashes.
There's also more power, with a guide number of 197' (60 m) at ISO 100, a zoom flash head that covers a 20-200mm range.
Compatible with the AF frame of all EOS cameras, the Speedlite 600EX-RT even works perfectly with the 61-Point High Density Reticular AF found in the EOS-1D X and the EOS 5D Mark III.