Canon Extender EF 1.4x II Teleconverter and . . .

[RJSorensen]

Canon Extender EF 1.4x II Teleconverter and Canon EF 100-400mm f/4.5-5.6 L IS USM Telephoto Zoom Lens combo use. I was wondering if any of you use this combo and your thoughts on same. Can one pan on geese on the wing and focus as well . . . or do I need to wait for my prime 500mm for that?

Value for the money . . . or not. Also any experiance with the TC 2.0 II?

My thanks once again.

[PacAce]

Yes, you can use the 1.4x on the 100-400 lens but, unless you have a 1D series camera, you won't have AF in that combo.

[RJSorensen]

Yes I forgot to note that I have a 20D at this time . . . can it be done? Pan and focus at the same time? or are TC's for static shots.

[CyberDyneSystems]

Are you asking if it's possible to pan and focus manually at the same time?

Sure it can be done,. but it takes lots of practice!

Frankly,. I would not try to follow moving objects without AF,. but then I never was much for manual focus unless I absolutely have to ;)

[prsast]

I have had very mixed results with the 1.4x EF multipier.

I find the 100-400mm soft at 350-400mm but excellent at 100-340mm, However in combination with the 1.4x I seem to get soft results (across the range). This is in contrast to my prime telephoto lenses which give fantastic results with the 1.4x (the 300mm+1.4x I find to be as sharp as the 300mm alone - on 35mm I used to strugle to work out if shots were taken using a multipier or just the prime!!)

If you have to use the zoom and the 1.4x, try to use it at 350mm, mount on a solid tripod and keep the aperture at f8-f16 as this seems to give the best results - for me anyway.

Andy

[RJSorensen]

Yes CDS, I want to shoot Fowl on the fly. Thank you prsast for the f stop information. Thank you PacAce for the AF info.

[gramps]

You can shoot 'em on the fly with a 12 guage................then use a "short" lens when they are on the ground waitin' to be plucked.