Pinhole Effect in Confocal Microscopes

Full credit to the source of this post http://www.leica-microsystems.com/science-lab/pinhole-effect-in-confocal-microscopes/

When operating a confocal microscope, or when discussing features and parameters of such a device, we inescapably mention the pinhole and its diameter. This short introductory document is meant to explain the significance of the pinhole for those, who did not want to spend too much time to dig into theory and details of confocal microscopy but wanted to have an idea about the effect of the pinhole.

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