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Canon Extenders II vs III

Started Jun 13, 2011 | Discussions thread
samWebster123 Senior Member • Posts: 1,153
Re: Canon Extenders II vs III

tonyjr wrote:

But I notice no slow down in AF on the new 70-200 mk II . [ very little use so far , but specs say it does slow down AF .

Have you tried it in lower light? I find the AF slows significantly using the 2x on the 70-200II in less than bright conditions.

Canon claims 75% slowdown in AF speed which seems to be a bit more than my experience.

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