No, I've been referring to the 40 inch Lastolite Umbrella Box, the original model. It was used quite a bit by the founder of the dg28.com web site, whose site is, I think, the one the stobist blog spot was coined after.
LU3227 Lastolite 40" White Umbrella Box with 7mm Shaft.
The umbrella boxes that Annie Liebovitz uses so often are the Photek Softlighter models, like this one
SL5000 Photek Softlighter II, 46" Umbrella with Diffuser.
Derrell, I am interested in this style umbrella box because of the quality light I THINK it has. Have you used any other style diffusers to compare them to?; also, being priced basically the same, do you think either has advantages over the other?
The Lastolite Umnbrella Box is available in 40 inch ,60 inch, and 80 inch models. They are 8-panel umbrellas and use a 3-zipper front closure, so they can be used with rather larger reflector light heads, like even 8.5 inch reflectors.
I have not used the Photek Softlighter, which has recently gone to a "II" model designation, which now comes with two light discs for use in warming/changing the lighting characteristics. The Softlighter is made up of 10 panels, and so it more-round than most umbrellas.
The Steve Kaeser umbrella boxes are really low-cost, priced at around $36 for TWO 40-inchers, and they use the drawstring front closure system,much like the Photek models use.
This type of enclosed umbrella is much,much more like a softbox than a reflecting umbrella or a shoot-through,and wha's nice is the way they keep spill light from striking the lens, or hitting the ceiling or walls, and they keep the light ALL going forward, more like a softbox does.