(interested amateur) bought this fixed focal length especially for use on my NEX-7, but it is "screwed" alternately onto the NEX-5n. The case is very well made and feels "cool" as a result of the metal body. I really like the design and feel. In my opinion, it looks classier in black than in silver. Image stabilizer and AF work pleasantly quietly. The AF is usually accurate. If not, the MF can be used very well due to the enlarged display of the motif and colored edge enhancement. Mostly I take pictures in mode A or M with adjusted aperture. Then resolution and impression of sharpness up to the corners are practically best to achieve. Overall, I rate the image quality as good to very good. The focusing ring is very easy to use and can be adjusted precisely. The 50mm f/1.8 is really a very good glass: very good workmanship and smooth running of the focusing ring, wonderful bokeh, especially at f1.8, consistent sharpness from the center to the corners of the picture from f4, effective image stabilization. I can absolutely recommend the purchase, especially in comparison with the corresponding lenses from Nikon and Canon. In my opinion, 5 points are quite appropriate. All in all, a recommendation for photographers who prefer a very good fixed focal length to a zoom. The image results are really excellent. In my opinion, the price/performance ratio is good to very good.