This lens has been in my posession for a while. A lens that is kept in absolutely pristine condition. After some intermittent use, I found this lens a very special one. You might say that the maximum aperture of this lens is only f4. However, this lens is so much smaller than any lenses I own with similar focal length. The lens is totally made of metal with low weight. Beautiful lens for a lens collector. F4 allows me to manual focus a lot easier for distant subjects. The images are crispy and sharp from corner to corner. The bokeh is also pleasant typically from Apo version of Voigtlander lenses. I am so happy that this lens is now in my posession.