wookie6262
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- Name
- Simon
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I did a very quick comparison the other day and that was my findings too. I think I will be keeping my 100-400 at least until there is a better option. I'd love to try a Sigma 120-300 Sport on teh A1 to see how well it worksFinally got around to looking at this on the computer, to my eyes the 70-200mm with 2x TX at 400mm is much softer than the 100-400mm at 400mm with both at f5.6. If you stop the 70-200mm down to f8 it's still softer than the 100-400mm at f5.6, if that's true to life in the real world the 2x TC is definitely not for me.



