Translated from Fotomagazin:
The surprisingly small and lightweight lens produced in Vietnam and despite the high light intensity – for a zoom with this focal length range – has a filter diameter of 67 mm.
The zoom ring runs in our pre-production pattern tight, advantageously the extract does not extend when zooming. The focusing ring is also running very well. Due to the lack of a distance scale, the near limit can only be determined approximately at 19 cm. Autofocus with the RXD stepper motor (Rapid eXtra-silent stepping drive) works quickly. Its short lens hood is made of plastic and inside ribbed and matted.
Visually, the super wide-angle zoom is very good in practice: fine structures are reproduced very well even at the initial opening and 17 mm setting. The wavy distortion at 17 mm and the pincushion distortion at 28 mm are very well calculated for the JPEGs. Even with the vignetting, the e-zoom is positive, at 17 mm seems to be worthwhile in this regard, a dimming, at 28 mm not. For Sony photographers seems to suggest a very attractive alternative, the sale price and start is still uncertain, but should be far below the Sony originals in this focal length range. More detailed statements will be provided by the BAS Digital Laboratory Test as soon as testable serial devices are available to the editors.