This will power four Alien Bee B800's (320 watt seconds each) with no
problem. Just a couple of seconds to recycle all four lights from a
typical low power setting. It weighs about 15-20 pounds and stands
about 15" tall.
<http://www.chucknorcutt.com/gear/Powerpack%20for%20Bees.jpg>
For greater portability you can use one or more of these
<http://www.chucknorcutt.com/gear/Umbrella%20adapter%20mounted%20on%20tripod%20%232.jpg>
Just two T-32's on an umbrella bracket with a little piece of aluminum
bar stock and a couple of hot shoe adapters. One is a T-20 auto
connector so it can be fired from an OM with TTL cables. The other is
an ordinary PC connection. A short TTL cable joins the two so they fire
in sync or else you can put an optical slave shoe under one of them
facing into the umbrella. Here's a view of the bracket details
<http://www.chucknorcutt.com/gear/Homemade%20bracket%20&%20various%20hotshoe%20adapters.jpg>
You can travel very light if you don't mind a 10-15 second recycle time
or you can hook up one of these Quantum turbo compatible battery things
with a Quantum Y cable to power both flashes from one power pack.
Recycle time with both flashes doing a full dump is about 3 seconds.
<http://www.bhphotovideo.com/bnh/controller/home?O=Search&A=details&Q=&sku=294330&is=REG&addedTroughType=search>
Chuck Norcutt
AG Schnozz wrote:
> The formals are done with a studio strobe and umbrella with on-camera
> flash, though. I prefer to use on-camera flash even during the
> formals as it adds a little sparkle to the eyes and reduces any
> shadows under the nose, eyebrows and chin. It adds a tiny bit of
> life to the wedding dresses, too. To get around the power situation
> I'm now dragging a UPS around with me and plugging the studio strobe
> into that. This way, I don't need to run 100' of orange cord around
> the church. I'd like to replace this with a portable flash/battery
> setup with two lightstands/umbrellas. To do it well, I'd need to run
> dual 283/285 flashes (or equivelent) in each umbrella as well as a
> couple extra back lights for hairlighting and background fill. For
> the reception, I would like to shoot those onto the ceiling.
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