| Joined: | Thu Apr 12th, 2012 |
| Location: | Denham, United Kingdom |
| Posts: | 293 |
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Chris, get it serviced by ACS, as Eric mentions above, they have serviced several lenses and cameras for me, ring and ask for David he will give good advice.
The lens should be smooth and buttery to focus. When they serviced my 300mm f/2.8 Ais, it came back a dream to use, I could (and still can) fine focus by brushing the the focus ring with back of my little finger. It's not expensive and if they have one they will probably put a new rubber grip on as part of the service.
I agree, if the focus action isn't smooth changing the rubber grip isn't the solution
Last edited on Tue Feb 18th, 2020 16:08 by GeoffR