Does Kenko 2X MC7 Teleplus work with EF 70-300mm IS USM?

[dRebelXT]

Need to know the compatibility of Kenko Teleplus 2X MC7 can work with my asena.
EF 70-300 IS USM; (No AF ok)
Tamron 90mm F/2.8 Macro; (AF?)

And dreamed gears in my mind.
EF 300mm F/2.8; (AF?)
EF 200mm F/2.8; (AF?)

Thank you for the info.

 

[kietgnoel]

I'm using the Teleplus Pro 1.4X TC with my EF 70-300mm IS USM - supposedly better quality version compared to the MC7. AF works but hunts at the tele end.

Can't confirm about the 2X and your other lenses but I believe it will work

However, there's some degradation in quality when the TC is used.