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D800e with 300 mm 2.8. Surprising results without and ...

ericbowles

Atlanta, US
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"RE: D800e with 300 mm 2.8. Surprising results without and with TC 's"

ericbowles Moderator Awarded for his in-depth knowledge and high level skills in various areas, especially Landscape and Wildlife Photoghraphy Writer Ribbon awarded for for his article contributions to the community Donor Ribbon awarded for his very generous support to the Fundraising Campaign 2015 Nikonian since 25th Nov 2005
Wed 27-Mar-13 11:03 AM

Diffraction would have an adverse impact beyond f/8, but it may be offset by DOF benefits. Diffraction can also reduce the likelihood of moire.

If a bare lens needs AF Fine Tuning of -15, it's possible that with a teleconverter the adjustment is -5, so that lens could be closer to ideal with a teleconverter. Using a higher aperture would mask the AF error with improved DOF even after considering the impact of diffraction. So it is certainly possible that on some lens/camera/teleconverter combinations you would have better performance with a teleconverter and at f/16 than with a bare lens at f/2.8. This is not typical - but certainly possible. You might get different results with different target distances or different lighting. And the testing shows that it is important to know how your gear performs.


Eric Bowles
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A general, generic topic D800e with 300 mm 2.8. Surprising results without and ... [View all] , david ashley , Thu 21-Mar-13 01:28 AM
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