Great lens....Totally manual focus---Glad I added to my tool box!
Good quality! Since I could not afford the auto-focus equivalent at several thousand dollars, it is a great cost effective choice. Totally manual focus....must use a tripod....must use 2 sec delay or remote to take the picture. I was able to take a picture of big bird's head off a small ornament on the Christmas tree way across the room.....Waiting for a dry warmer day to go to the park and capture ducks on the lake....I think it will work great from what I see so far....