so I am a very profane clippers who makes with his Canon 1100D in the privacy of beautiful photos. I've mostly gotten everything in fully automatic mode and got me on the internal flash every time green and blue. For a Speedlite I was then but honestly too stingy. The Bliz met my expectations perfectly and was a real bargain. The husband of my cousin's ambitious photographer and has looked at the course here is more accurate and the same result as I come Super flash at a reasonable price. Whether it's what kind of professionals I can not judge, but for mere mortals 0815 reached the part of all :) strong buy recommendation