Very happy with the purchase. Compared with the Elks and did not find a fundamental difference in the pictures. An excellent lens for the price. Pros below: The range of focal lengths is very convenient. I use it as a universal travel zoom. Sufficiently sharp throughout the frame in almost the entire range of focal lengths. Fast precise focus. After Canon 50 1.8 it's just a fairy tale. There is enough light. Well, the truth is enough, although I did not believe it. Some cons: Relatively heavy. Filter diameter 72 mm - too much. On the carcass of the 550D, it turns out to be cumbersome, and outweighs forward.
Nikon 35mm f/1.8G Auto Focus Lens for Nikon DSLR Cameras - Black (Model 2183)
125 Review
Nikon 50mm f/1.8D Lens: Perfect for Nikon DSLR Cameras!
97 Review
Canon EF 50mm f/1.8 II Fixed Lens - Discontinued by Manufacturer
93 Review
Canon EF 40mm f/2.8 STM Lens - Fixed Black (6310B002) for US Cameras
76 Review