>> Karen Nakamura wrote:
>> I have an EOS-3 with the 75-300mm F4-5.6 IS lens. I can tell
>> you that the focus tracking on that lens is pretty spectacularly
>> bad, even with a high-end body.
> "Jani Patanen" wrote: ...
> I remember similar kind of sitution in one of the finnish
> newsgroups. There was this person who was disapointed to
> eos 3 and 75-300's AF. He had switched from eos50 to eos3
> and said that in the long end eos50 had better AF. Only
> explanation we could come up with was that when you go
> long enough, the minimum aperature of 75-300 goes over f/4.
> with eos50, the cetral sensors are cross type even at f/5.6,
> but with eos3 they are only vertical (or was it horizontal)
> type, not cross type. ...
Hi Jani,
According to a post in 1999 from Mike Boreham, the EOS 3 will
only detect horizontal lines past f/4
http://www.listquest.com/lq/view.cgi?ln=canoneos&q=strange&b=1&s=1&o=0&mid=61644
Cheers
Julian Loke
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