Just switched from Canon A9 to Sony. This is my first Sony lens. The build quality is really good if it feels like a tank, like a Canon counterpart. It's a bit more expensive than Canon, but I think it's worth it. Focus was fast and accurate, and very quiet when shooting video too, which is a bonus. The only downside is that the front is heavy with my camera, but this could be remedied with a battery grip in the future.
Nikon 35mm f/1.8G Auto Focus Lens for Nikon DSLR Cameras - Black (Model 2183)
125 Review
Canon EF 50mm f/1.8 II Fixed Lens - Discontinued by Manufacturer
93 Review
Canon EOS SLR Camera Lens EF 24-105mm f/4 L IS USM
124 Review
Canon EF 40mm f/2.8 STM Lens - Fixed Black (6310B002) for US Cameras
76 Review