The Laowa 15mm wide angle macro lens has to be one of my favorite lenses I have used to date. With the ability to focus 4mm from the physical glass element at the end, this lens offers incredible perspective. While outside, I found a daddy-long-legs crawling up my leg. Putting the camera in his path, he crawled right up to the lens and poked around. The spider reached a leg up to his mandibles and I snapped the photo.
Canon t4i 15mm f/4 1/60 ISO400