Not content with testing my lens out on my car, I had to try it out on my dogs. Unfortunately, Rusty was being a brat, and did not want to cooperate. However, Casper is much more camera friendly. I tried out using the warming filter I received with the lens. Unfortunately, the lighting in my in-laws’ back yard was not very good for what I was going for, but Casper did look pretty good in the shots.