The Minolta AF 1.7 / 50mm lens is a very clear, bright lens. The aperture of 1.7 can it be to take pictures without flash and high ISO values not even in low light conditions. Simultaneously, the large aperture produces a very high depth of field, but is particularly effective even at videos photos! Although the lens is called a portrait lens, it is suitable for any purpose. I bought it used, and it is still in very good condition, as it is high-quality. Of course I have also considered a new lens from Sony to buy, but I am glad that I chose for the Minolta. I would each owner a Sony DSLR advise to the purchase of the Minolta AF 1,7 / 50 mm, because it is an asset not only due to the large aperture, but also because of the very good image quality ...