600mm @ f2.8 they said it's not true?!?

Started Dec 1, 2012 | Questions thread
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ternel
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600mm @ f2.8 they said it's not true?!?
Dec 1, 2012

Hi Guys,

I heard some people are saying that if you push the lens to 600mm its not really at f2.8?

Is that true?

I'm planning to get one soon.

Thanks!

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