User Activity

Most flash makers publish the flash durations for the various power levels in the manual, but Canon does not.  When photographing very high speed action, such as hummingbird wings, it is important to have the flash durations quite close to avoid ghos...
I have two problems with Canon gear that continue to annoy me.   Has anyone got a way to solve them. 1.  I use the Canon Speedlite 600EX-RT with the ST-E3-RT mounted on my Canon 1DX and now 1DX II cameras a lot.  Nearly always using a tripod, I commo...
I have a set of four Canon 600EX-RT Speedlites and four 430EX-RT IIIs.  In the hummingbird workshops I teach, I need a way to let other camera systems fire and sync with my Canon Speedlites.  To do this, I have had to resort to using a Male to Male P...