Greetings Alexander Your 85 f1.8 is just fine. The lens employs a rear - focusing mechanism. What it means is that it uses the rear element to focus the lens. What your hear rattling is the rear focusing mechanism. Its a cracker of a lens. Bye. Benjamin SB Lau Don't find fault, find a remedy. - Henry Ford
- Nikkor 85/1.8 AF D: what is shaking inside? Alexander Murzinov
- bsblau