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| p.1 #1 · Sigma 300mm f/2.8 with 2x extender - experiences? |
Hello, I was curious if the were any members with experience with the Sigma 300mm 2.8 with the 2x extender, specifically compared to the most recent Canon 300mm 2.8 vii with the 2x viii extender?
If so, I would appreciate any thoughts you have relating to the AF speed and IQ comparisons.