Autofocs 100-400 USM

Started by ampie, May 13, 2013, 11:37:40 AM

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ampie

I have a 50D and 550D, and use it with a 100-400 IS USM lens with 1.4 converter. Currently it does not allow autofocus, will ML fix the problem?

nanomad

EOS 1100D | EOS 650 (No, I didn't forget the D) | Ye Olde Canon EF Lenses ('87): 50 f/1.8 - 28 f/2.8 - 70-210 f/4 | EF-S 18-55 f/3.5-5.6 | Metz 36 AF-5