Toralf wrote: 

> Furthermore, I suspect Canon chose in-lens motors because they had 
> decided that there would be no mechanical coupling whatsoever between 
> the lens an body, i.e. not based on AF considerations as such. May or 
> may not have been a good idea; that's really a different discussion.


Right. Canon developed their AF for the old FD system. There was no space for a 
drivuing shaft on this mount so Canon development work took a different 
direction from the competition. So the fact that Canon had a horrid lens mount 
actually worked for the good for the company forcing them to choose different 
technical solutions and eventually ditch the lensmount alltogether...

Pål



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