Very bright with its opening F / 1.8, this lens is excellent despite its low price. I use it with great satisfaction for many years on the series of Sony Alpha I had in hands: Sony Alpha 550, Sony Alpha 55 and now the Sony Alpha 65 V, which nevertheless requires a great quelite of aim to serve the 24.6 mega pxels sensor of this case. With the Sony SAL 50mm F / 1.8, this quality is the appointment vous.Compte Given the focal multiplier factor of 1.5 related to the APSC sensor, 50mm behaves like a 75mm, which makes it a very good lens to portraits, further consideration of this focal opened enough to allow pretty blurry in the background.