bear with me as I edit my test photos as it might take 10-20 minutes for my subsequent posts.
Heres what it looks like on my camera at ETTL 2 settings and also at full power
Camera is a canon 7d, Tamron 17-50 2.8 lens and a using a speedlite 430exii.
All shots used the following settings f4, iso 100.
Flash shots using shutter speed 1/160 in manual mode evaluative metering, f4, iso 100.
non flash shots using aperture priority, shutter watever the camera recommended, f4, iso 100.