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Thread: Sweet spot after 2x tc

  1. #1

    Default Sweet spot after 2x tc

    Let say a f2.8 Lens sweet spot is at f5.6. If u add an 2x tc will the sweet spot remain at f5.6 or f11?

  2. #2

    Default Re: Sweet spot after 2x tc

    The lens' sweet spot will stay at f/5.6, however the *effective* aperture is similar to f/11 in terms of light loss.


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