Quote:
Originally Posted by john20d
Hi, as I understand it only the Canon 1.4 converter will allow AF, enjoy the lens, can't wait to see some results, John
P.S. My information came from Jessops when I enquired about the same lens.
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Another case of wrong information given out by Jessops.
More to do with the camera body. 20D,30D,350D and 400D has a AF limit at f5.6 so your have to do the tape trick to maintain AF. I think your find the 1D bodies have a limit of f8 so it would take the 400 f5.6 + x1.4 and still AF.
For the 20D the AF working range of light is EV 0.5 - 18
For the 1D the AF working range of light is EV 0 - 18