10 out of 10 points and recommendedcompact versaitile sharp relaible fast autofocus used with alpha SLT55creeping
I use this lens now nearly for two years. Aprox. 15.000 shots later I am still amazed how good this lens is. The sharpness is only surpassed by some SONY fixed lenses I tried (e.g. the excellent 35mm SAM 1,8). The Sigma Zoom 17-70 2.8 and the Tamron 17-50 2,8 are much softer in the corner and the colours are different from the typical SONY colour-style.reviewed April 10th, 2012 (purchased for $850)
The only negative is the creeping if you hang your Camera with this lens over your shoulder and walk. After a short distance it is extended to its full length.
I use a 7mm broad elastic rubber band around the Zoom ring, a bit overlapping between Zoom ring and lens body helps to solve this problem. This should not happen with such an quite expensive lens. Sony should learn a bit about German engineering from their partner Zeiss.