> "Martijn Stol" <[EMAIL PROTECTED]>
> I've just tried it with my 300/4 L IS, and a Soligor 2x TC, on my eos 30
> (elan 7e). Normally, with this TC, the camera reports F8 aperture (as it
> should), and doesn't even try to autofocus.
> So I've slipped a small piece of paper into the TC, over the first 3
> electrical contacts *
> Now the camera reports F4 again, and tries to autofocus. ...
Hi Martijn,
Great news. I avoided the Canon Tele-extenders in favour of Tamron TCs
(uggh) since my f/5.6 lenses will shut off the AF on my Elan 7E. Maybe it
is time to reconsider...
Do you have to cover all 3 electrical contacts?
Is it possible that the aperture reporting is on one pin?
And that the signal to slow down AF is on another?
Cheers
Julian Loke
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