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Dust in lens or in sensor?

Started 3 months ago | Discussions thread
jbuzzinco Regular Member • Posts: 448
Re: Dust in lens or in sensor?

Are you using f/22 just to inspect for dust?  Images taken at that aperture are going to be terribly soft due to diffraction. The 16-55 is sharpest at f/2.8-f/4 at all focal lengths is diffraction limited beyond that.

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