Addendum:
I still noticed that this flash does not produce more red eyes. In my other cameras that was always so in certain individuals. The eye color is now displayed lifelike.
Note on the set of my images of Speedlite:
The pictures should be played in the order actually placed by me. The fact that some people have only a portion clicked on the evaluation, the effect is lost, which should be reproduced in the bracketing. I wanted to show the possibilities of exposure results the Speedlite at a full rotation and using different angles. The fact that only a few pictures were clicked, the result is a bit torn.
Addendum:
You can set the EOS 550D to 1/200 second X sync. Go in the camera's menu to Custom Settings and select with OK. Then the C.Fn I confirm Select 3 and go to the position 2 1/200 second (fixed) with ok.
This fixed time synchronization works then great with the selection AV mode dial on the camera. On the flash, the range is displayed in meters, in the corresponding aperture. I tested it once, at aperture 22 it is still 2 meters and at f 5 13 meters, and at f 8 9 meters. The advantage of this setting is that moving images no longer blur and exposure is then just like in automatic mode, the camera, only the X synchronization just does not start at a 1/60 second but with 1/200. It then goes into the automatic mode, the camera returns to work the camera again with 1/60 to 1/200 second according to the ambient light.
