Originally posted by Russell-Evans I've seen three posts of this type of failure. When your lens comes back, would you mind replying to this with what was documented as the failure, please?
Thank you
Russell
UPS called yesterday to ask if I'd be around today to accept a package. Well, it just arrived from CRIS and they fixed the problem. The documentation says they "replaced HSM (Hyper-Sonic Motor)" and "cleaned and checked to factory specifications".
So it has an entirely new SDM and it locks focus quickly now like it did before I first experienced the problem. I hope this is the end of SDM problems for this lens, as I quite like it.
Maybe we should consider changing the rules for this poll, and allow those who have lenses that wouldn't lock focus to be included in the "Bad SDM" if they had to replace mine.