The sony 300mm f28 g ssm ii lens is a fast prime lens ideal for sports wildlife and more thanks to its large bright maximum f28 fixed aperture you can ensure great low light performance and beautiful images with a shallow depth of field and smooth natural out of focus areas the sony 300mm f28 g ssm ii lens features a super sonic wave motor for quiet responsive autofocus a lightweight design with detachable tripod mount and special sealing against dust and moisture