It's a bird

by Vian Esterhuizen

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No, this is not diffraction. Let's start by recalling how the image is formed by the lens (focused and defocused): Each point of your large aperture lens contributes to just one point of the defocused image: (by the way, this also shows why aperture size affects (de)focus) And what happens if you place an obstacle (your hands) near the lens? Not all ...


-1

As you write the noise level is bound to the refresh rate. If you have difficulties to focus, use the digital viewfinder.



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