This was a fun review. It was the last of Sigma Telephoto Prime lenses. I also reviewed the 300mm F2.8 and 500mmF4.5. The 500 was my favorite out of the three. I want to test out the Sigma Sigma 300-800mm f/5.6. It will be a nice contrast.
A lot of refined glass and a lot of engineering were put into the creation of this lens. The Sigma 800mm f/5.6 EX DG APO HSM Autofocus Lens for Nikon AF-D is big–really big. This lens is the third telephoto prime lens from Sigma I’ve reviewed, and it’s certainly the longest one. After working with Sigma’s 300mm and 500mm, this lens had me really curious. I sat there thinking, “Do I need it?” It is not a complicated lens. However, it is a tank cannon.