Numerical Aperture, Resolution, and Sampling Explained
Learn how numerical aperture, wavelength, illumination, and digital sampling determine microscope resolution, contrast, and depth of field.

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Listen to Bernard Miller describe his journey into AstroPhotography and detail how he captured this stunning image of the Sculptor Galaxy.
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Drew Evans talks about his passion for astrophotography, the equipment used and tips for post processing image data.
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Hear D.j Van Bourgondien as he talks about using his Celestron EdgeHD 8″ telescope to capture this image of the Fireworks Galaxy
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Learn how numerical aperture, wavelength, illumination, and digital sampling determine microscope resolution, contrast, and depth of field.
Understand Khler illumination: why it matters, how to set it up, and how to troubleshoot for crisp, uniform brightfield microscopy images.

We’ve all seen that scene in a science fiction film where astronauts are taking off in a rocket, and after the countdown finally reaches zero, they are thrown back violently from the sheer force of being lifted off the ground. If you saw the new Top Gun: Maverick film, you might remember a scene where