Somebody [or should I say “some-dog”?] is about to get a kiss on the nose!  And speaking of noses…this image is a great example of the depth of field challenges that you have when photographing dogs.  Just take a look at the difference in the depth of the man’s face and nose vs. the dog’s head and nose.  If I had been shooting these two head on, I would have had a challenge with keeping all of the dog’s nose in focus unless I was using an aperture setting like f/16 or more.  This image was shot outdoors at 1/160th of a second shutter speed, ISO 400 and f/3.5.  F/3.5 would not have been a small enough aperture to keep all of the dog’s nose and face in focus had I been photographing the dog head on.  Since I photographed from the side, it wasn’t a problem at all at this aperture.  A dog’s nose length is vitally important to consider when choosing the aperture [f/stop] for your image!