Re: 800mm f/5.6 + 1D-X + 1.4x Extender = Apparently It Can AF!
arbitrage wrote:
Hey Joshua,
Which Kenko are you using? Also do you find a difference between the Kenko and using the tape on the Canon?
I\'m asking because I posted a comment on Artie\'s blog and mentioned the 1.4 with tape may be just as good. Artie claims the taped Canon 1.4TC on the 1DX with the 800 is not good and jumps and \"chatters\" a lot?? Have you found a difference?
Thanks
Geoff,
Mine is the Teleplus Pro 300 DG, which is a reporting TC that I bought use. I just left the tape on the pins of the TC since putting the tape on and off in the field is a pain in the babushka . That TC is used exclusively for that lens, my only f/5.6 lens and for anything else I used my Canon 1.4X TC without tape, of course. I just received my lens back from Canon and except for some around the yard testing, I have done anything serious with it. I could not tell any difference between the two TCs operational wise, which says a lot for the Kenko. I haven\'t done any IQ comparison between the two, to be frank. Keep in mind that my findings are from results using the 5D Mark III. I am not sure whether the 1DX would behave differently or not and if it does, its AF should be better than that of the 5D Mark III but you can never tell. I hope this helps. Please let me know if you need any additional information.
Joshua
Sep 01, 2012 at 01:07 AM
Previous versions of AGeoJO's message #10926330 « 800mm f/5.6 + 1D-X + 1.4x Extender = Apparently It Can AF! »
. That TC is used exclusively for that lens, my only f/5.6 lens and for anything else I used my Canon 1.4X TC without tape, of course. I just received my lens back from Canon and except for some around the yard testing, I have done anything serious with it. I could not tell any difference between the two TCs operational wise, which says a lot for the Kenko. I haven\'t done any IQ comparison between the two, to be frank. Keep in mind that my findings are from results using the 5D Mark III. I am not sure whether the 1DX would behave differently or not and if it does, its AF should be better than that of the 5D Mark III but you can never tell. I hope this helps. Please let me know if you need any additional information.