> Vesa Perala wrote: > I read somewhere that the Sigma 500 Super flash has an > automatic power-off time of 90 seconds. > I might buy this flash as a slave flash in addition to my > 550EX and might sometimes use it in nature photography > (from a hide/blind). ...
Hi Vesa, The 90 second timeout is the power-saving standard for Canon EZ and EX Speedlites. When my 430EZ goes to sleep, pushing any camera button will wake it up. The 550EX is similar, except, as you know, the power switch has a separate position for ALWAYS ON and for POWER SAVE. There is also a separate 60 minute timeout for E-TTL slave which can be overridden by a custom function. So, if the Sigma will timeout, how about using the Sigma EF 500 Super as the master, and the 550EX as the slave? Cheers Julian Loke * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
