Today was the first time I have used my new 135mm f/1.8 lens......WOW!!!!! It and the A7R IV make for a terrific combination! I looked out my sliding glass door and saw that there were a number of geese on the lake, so I grabbed the camera, put the lens on her, and stepped out on my deck. The geese obligingly swam a little closer, but even so they were at some distance. It is a grey, dreary day here so I started out by opening the lens up all the way and began shooting. Later in the house I reviewed my images in the computer and then experimented with some major cropping to see if that 61 megapixels really can make a difference.....