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We were quite pleased with it although it's also clear that Sony had to accept some compromises in order to achieve the compact dimensions. The sharpness is very high between 70mm and 250mm but there is a more pronounced drop in quality at 350mm [...] It is a interesting option for those who prefer to keep the overall size & weight of their setup down to a minimum.
Sony Alpha Blog It is the professional photo zoom we needed for Sony APSC cameras. It is the counterpart of the excellent Sony 100-400 mm on full frame but for 2.5 time less. Sharpness is very good to excellent and background blur is very nice at 135mm and above [...] It does not reach the excellence of the Sony E 16-55mm F2.8 G in term of color rendition and bokeh but overall it is an excellent lens for the price and a very versatile telephoto lens.