My friend called and asked to borrow my flash for an open-room, dance type party and I made a diffuser with two sheets of paper (and an internet fold/cut diagram) with one colored black. I experimented, and was astounded to find the direct-on shots came out pretty even and easy to shoot. I kept the aperture at a constant 5.6 and the flash set to get a good exposure at about 10 feet (where the flash and lens intersect.) I just didnt worry about exposure, kept even distance, zoomed in and out as needed. The pictures were looking way better than typical amature indoor shots (the pictures had background detail, not pure black with light spots, and people were not washed out.) So all was dandy until the paid video photographer tells me to leave, and I mention that I am a guest and he is not (which he didn't believe because I was the only white person there) and that I was so far from being a pro its silly (trying to be diplomatic), and he yells something about professional gear (despite a happy meal toy style flash diffuser). He threatened to tell the family, I put the camera in a corner and tossed my jacket over it, then nursed the free energy drinks in the back of the room while watching the traditional dancing until it was a good time to duck out. I guess thats what you calling protecting your turf. I'm still fuming. Just needed to share
you can get adapters from canon to make ef lenses fit on them, but the crop factor is rediculous. if it was the standard lens, they are real beasts, f1.6 at the wide end, optical image stabilisation, the works. great bit of kit.

