Hi all has anyone purchased this new speedlite? The blurb indicates it acts as a master only? Which will be interesting for macro work because of its small weight and size. With one or dual flashes as slaves on brackets? Ie one times Ex 90 and two x ex270s for cameras like my 50D without wireless built in, and still cheaper than than the mt24. Also you have the flexibility for other work? And not paying out for the st-e2? Presently the prices will be high but will soon drop.comments. Please. Mike