I use this E-mount full frame lens with the Sony A7RIII and it's a fantastic combination. The lens is solid, of high quality, but not too bulky and heavy. Using this on a crop sensor like the Sony a6500 will definitely feel big and heavy, but it suits the A7R series well. This is a high quality lens that can be used at wider angles for stunningly sharp photos with minimal chromatic aberration and distortion. Thread size is 82mm, so will fit many quality filters of your choice. A plus:
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
Nikon 35mm f/1.8G Auto Focus Lens for Nikon DSLR Cameras - Black (Model 2183)
125 Review