Northern Leopard Frog, Mississippi River, Mud Lake, Iowa
Here is another photo where the decision about the depth of focus (or depth of field, whatever you prefer) had an impact how this Northern Leopard Frog can be presented in its natural habitat. As you can see (without seeing me 😉), I was flat on the ground to be on eye level with the critter. You may also realize that the background is very busy and not very flattering. I started shooting with f/8 to have a little more than just the area around the eye in real sharp focus, but the clutter with sharp contours in the background killed the picture. The frog with its pattern did not stand out enough. The final photo was shot with f/4. Still not a great background but it is at least out of focus, much softer, and the Leopard Frog with its wonderful eye had a chance to shine.
Nikon D750, Nikkor 70-200mm / f4, @190 mm, 1/1250 s, f/4, ISO400