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500mm vs 600mm?

Started Nov 13, 2017 | Questions thread
BirdShooter7 Veteran Member • Posts: 9,134
Re: 500mm vs 600mm?

I guess English isn't your native language or you are just intentionally miss understanding.  A f/4 lens will most definitely still be able to achieve focus in lower lighting conditions than a f/5.6 lens and that is what we are talking about.

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