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I will explain how to avoid each type of blur, or minimize them as much as possible, in your photography. Specifically, the four sources of blurry photos are motion (from the camera or subject), out-of-focus blur, diffraction, and lens...
The diffraction grating and reflective surfaces inside the hologram recreate the original object beam. This beam is absolutely identical to the original object beam before it was combined with the reference wave. This is what happens when you listen to the radio. Your radio receiver removes the si...
Periodic crystal diffraction is described using a three-dimensional (3D) unit cell and 3D space-group symmetry. Incommensurately modulated crystals are a subset of aperiodic crystals that need four to six dimensions to describe the observed diffraction pattern, and they have characteristic satellite ...
Few of us understand how diffraction softens our images at smaller apertures.Diffraction is an effect that becomes important at apertures smaller than f/22, so that stopping down all the way loses sharpness on a view camera. The smaller an aperture through which an image has to pass, the ...
My life as Oxford Instruments’ EBSD Product Manager would be much easier if EBSD was a simpler technique. The fact that it involves diffraction and crystallography is enough to put many people off, even before they encounter the complexities of pole fig
And what are some of the common properties of light, such as absorption, reflection, refraction and diffraction? You might think scientists know all the answers, but light continues to surprise them. Here's an example: We've always taken for granted that light travels faster than anything ...
To help decide whether to use flare in images, it is a good idea to understand why it happens in the first place. Let’s go over the causes of flare in detail, then discuss ways to use, reduce or perhaps completely avoid it.
5) took his first X-ray diffraction photographs of a protein, pepsin, in 1934 in Cambridge. It had “a rich pattern of slightly blurred spots extended all over the films” [13]. Bernal realized that something extraordinary happened. He “was ecstatic and spent the night wandering about the...
Plasmonics Enable Optical Microscopes to Perform Like Electron Microscopes by Dexter Johnson. IEEE Spectrum, July 21, 2016. Is it possible to go beyond the limitations of optical microscopy without switching to an electron beam? Super-Resolution Microscopes Crack the Diffraction Limit by Douglas McCormi...