100-300 or 75-300?

Started Jan 20, 2013 | Questions thread
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Kim Letkeman
Kim Letkeman Forum Pro • Posts: 33,332
brain fart :-)

Kim Letkeman wrote:

sb123 wrote:

My experience is anecdotal and not experimental. So, if you don't believe it, but really want to know, try to test it for yourself. The difference is not small, and should be immediately clear.

That is really impressive. That the Oly can give up 1.5 stops at the long end and still focus significantly faster.

Oops .. 0.5 stops ...

Do you still have both? Why not set up a test and put it on video? That would answer the question permanently and become the standard reference.

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