Thanks. These were all shot with a Nikon D7200 and a Sigma 17-50mm f2.8 lens.
I've heard that lens was really sharp. I have the Sigma Art 50mm and just got the Art 135mm one for Thanksgiving. They are really sharp too. As the old knight said in Indiana Jones, "you chose wisely" and your pictures are incredible. You did a great job on your exposure calculations and they are stunning images. I would hope that the Dad finally got a smile when he saw those. You nailed it. Thanks for sharing with us.