Originally posted by pursang No the strobe was directly at Greg's back NOT into the parking lot or office.
I did a quick informal test just now and I got it to work (marginally) but not as good as yours. Here are my observations. I found out through testing (my first shot) that it had to be pointed in towards the subject. (Back in towards the camera) In my case I aimed it up towards the ceiling more.
I also found out that I had to play with shutter speeds and apertures and a whole lot of exposure stuff to get it to work, but even then my 'background' was either still too bright and/or close. I finally got it to work where the background was a quite a bit darker.
My area I was shooting into was in my living room. Low white ceilings. I pulled a big recliner chair in front of a open doorway and tried to have even light in the front and blacken out the adjacent room. Possibly I need to pull the chair farther from the entrance?
Don't get me wrong, it did work in my 3 minute test, the results were very noticeable but they were not as stark as yours. The other room had sunlight blazing in a window so I think that might have something to do with it.
All that said I was able to get a fairly decent effect with various shutter speeds and apertures as is. I will have to play with it a bit more later.
I just wonder if I need a second flash because most of my foreground lighting was coming from the bounce off the ceiling.
It will be something I have to play with a little bit more... but its already given me a ton of ideas