Darrell Dorsey wrote:
> Let me try and make this simple.
> If you have a ST-E2 you can use either a 420 or 550 as a slave.
> If you have a 420EX you need a 550 as a master since the 420
> can only be a slave.
> If you have 2 550s they serve as either but
> you sill need something like an off camera cord to move the 550
> away from the lens axis.
> I have a ST-E2 and 2 550s for this reason. I can position them
> anywhere and use the ST-E2 to trigger them. At the time the 420EXs
> were not on the market. If they were I may have opted for 2 420s
> to save some $$$. THe exception would be the added power of the
> 550 which can help with slower films and also in poorly lit
> situtations.
And the ability to use an external high voltage power source like the CP-E
or the Quantum Turbo, etc. Which is the main reason I ordered a second
550EX. In addition to having a remote flash, I needed a back-up for event
work. In both situations I will be using a CP-E.
--------------------------------------------------------
Thank you. I did not know that the 420EX was unable to use HV.
*
****
*******
***********************************************************
* For list instructions, including unsubscribe, see:
* http://www.a1.nl/phomepag/markerink/eos_list.htm
***********************************************************
