p.6 #4 · 800mm f/5.6 + 1D-X + 1.4x Extender = Apparently It Can AF!
Decor wrote:
I just updated my 1dX firmware to 1.06 and now my Kenko 1.4TC pro 300 works with the 1dX and the 800. It did not work with the original 1.02 firmware.
My 1dx/800 does not work with the 1.06 firmware, go figure.