Unfortunately, this is not an umbrella, it is a softbox. With an umbrella your options are a little easier. Because the softbox itself is so close to the flash body, the sensor has a narrow window of visibility. Reversing the flash on the bracket is a little more involved than simply rotating the flash head. It is MUCH easier to just rotate the entire combination ... fortunately the flash does not care if it is upside down.
True, the sensor on the flash does not do any of the flash metering, but it does recieve the signal when to fire. When ouside in fair light, if the flash sensor is too far off axis from my onboard flash on the D200 (set to commander mode) it can fail to trigger the SB-800. Indoors, the sensor seems to pick up easier, probably because of reflections off walls, etc.
Butch
Edited by butchM on May 30, 2007 at 07:51 PM GMT