550EX and ST-E2 - Manual Mode ?
I'm going to be crossposting this in the Canon forum as well but since it's a "sort of" lighting question I thought I would ask here.
I've got an ST-E2 and 420EX currently.
I've rented a 550EX and I can't figure out if there's a way to use the ST-E2 to trigger the 550EX while the 550EX is in Manual mode.
I know that it will work just fine in ETTL mode and in Multi mode but I can't figure out if it's possible in Manual mode.
My reasons? Well, I want to fire the 550EX into an umbrella but I want to control the output. At the same point in time, I would like to have the 420EX used for either fill or background.
Is this possible?