This review is for the Canon 70-200mm f4L USM lens. I've used this lens for several years, and it has always performed really well.

70-200mm f4L: http://amzn.to/2qJy9Lc

I've posted some sample photos taken with this lens on the Radiant Photography blog: http://radiant.photography/2016/02/radiant-review-canon-70-200-f4l/