Quote Originally Posted by Tannin View Post
The ribbon problem does not apply to new lenses, only old ones manufactured before about ... oh ... maybe three years ago? A long time, anyway. New 24-105s all have the redesigned ribbon which does not have the problem. The same applies if you have an old 24-105 which has been repaired - the repairers use the new part, so the problem won't come back.

.

Ah, thanks for the advice, Tony, you have put my mind at rest.