Here are some images using the $150 Tamron AF 70-300mm f/4.0-5.6 lens. It’s not the world’s best lens by far, but it has some very cool niche uses — specifically, if you don’t want to spent more than $150.
These images are all shot at 300mm, f/5.6, on a 5d Mark II. All images were processed in Lightroom with a sharpness of 50.