Another "can I do this! TC q
I have a Canon 1.4 extender....I know I cannot use 2 together but
after a bit of a read through here I think I can add a Tamron or
You could try, but the quality isn't something to write home about.
I would like to keep autofocus.
As only the TC closest to the mount is detected your camera will try, to what amount this will work is debatable, I think it's not worthwile most of the time as the amount of contrast and luck you need to get a good decisive focusing attempt is staggering, others might disagree, that's probably down to the amount of light and luck...
Karl Günter Wünsch
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