The lack of AF performance seriously affects the feel of the lens and almost balances the scale with its pluses. But if you are not a reporter, you do not need to shoot running children, animals and athletes, and also you have it far from the only one in the system, then I definitely recommend it. For leisurely portrait shooting one of the best. Weight, compactness, build quality and pictures. First of all, it is probably art glass. If there is such a term. Good luck. I recommend to buy. I completely forgot - it fits in a leather case together with the carcass and is perfectly protected.
Canon EF 40mm f/2.8 STM Lens - Fixed Black (6310B002) for US Cameras
76 Review
Canon EF 50mm f/1.8 II Fixed Lens - Discontinued by Manufacturer
93 Review
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