This lens is probably made by the same company that makes Zonlai Discover ( @gnarlydog australia posted a thread earlier on that.) Nice and compact, almost too small to handle when one wants to adjust aperture, both the focus ring and aperture ring turn very smoothly with a nice feel to them. Piece of cake to acquire focus viewing through the EVL as well as the LCD because of high resolution, unlike some vintage lenses which can be a bit "ambiguous". In the shot of a chained link fence, I acquired focus by placing the target area in the center of the EVL, then moved the camera to place the in-focus area to the side. The in-focus area remained sharp. Capable of very close focus, MFD approx 50mm from the nose of the lens. Some of the pics were cropped, the one with cactus particularly heavily. I think it is a very good lens, regardless of price. I hope to shoot some other subjects as well as some night shots with it soon.