I was wondering if any one uses the 2.0 converter with the 100-400mm lens on the 10D and how they like it. I have a 1.4 but would like the longer reach of the 2.0 but was wondering if they had any problems of not having enough light. I know that the 1.4 changes the f stop some.
Also if someone is using the 2.0 do you have any photos that I could look at.
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