Supertele choices

[Richard Lane]

Shouldn't we be able to use Live View for auto focus for f/8 or greater max aperture for stationary birds using a tripod?
Since 1000mm-1200mm is too long for BIF, it would still be nice to get some long range static shots with this combo.

Richard, I used live view with the 500mm II and the 2X to shoot wading herons. . This was the only way I could get a manually focused in focus image - I just couldn't do it through the viewfinder.

With the 1D IV I wouldn't completely miss AF with a 2x extender on it, manual would suffice. I would miss it for moving objects though.

Yes you could and I have used manual focus on the 1D4 at 1000mm because AF had trouble with the specific circumstance....low light, small bird standing in rushing water.

Thanks guys!

Just to clarify, I was referring to using "Auto-Focus" via Live Mode on the LCD at a max lens aperture of f/8 or smaller, and all of your responses were that Manual-Focusing in live view @1000mm was not a problem.

So, it sounds like the answer is no, that AF won't work whether it's in live view mode or through the VF. I wasn't sure if live view would be more sensitive than manually focusing with the VF.

Rich