Zoom Objektiv E-Mount

Numerical aperture (abbreviated as 'NA') is an important consideration when trying to distinguish detail in a specimen viewed down the microscope. NA is a ...

Zoom Objektiv SIGMA

Composition. Achromatic lenses are usually made by combining two types of glass with different dispersion properties: ... These two or more elements are cemented ...

Durch einfaches Drehen am Zoomring des Zoomobjektivs kann die Vergrößerung geändert werden, wodurch eine schnelle und einfache Betrachtung ermöglicht wird.Dank der Fähigkeit der kontinuierlichen Umstellung zwischen niedriger und hoher Vergrößerung kann das Messobjekt auf einfache Weise übersichtlich und gezielt im Detail betrachtet werden. Im Vergleich zu einem normalen Objektiv mit fester Vergrößerung ist ein Zoomobjektiv größer, schwerer und teurer. Die Vorteile überwiegen jedoch gegenüber den Nachteilen, so dass Zoomobjektive sehr häufig verwendet werden.In der Optik wird die Kombination aus mehreren Objektiven, durch die bestimmte Funktionen erfüllt werden, als „Objektiv“ bezeichnet.Tatsächlich besitzt ein Objektiv eine sehr komplexe Struktur, da sie aus mehreren Objektiven besteht, die durch modernste Objektivenbautechniken wesentlich verbessert wurden. Die Brennweite eines Zoomobjektivs kann verstellt werden, indem der Abstand der einzelnen Objektiven zueinander von Weitwinkel bis starker Vergrößerung verändert wird.

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ZoomobjektivBrennweite

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The refractive index can vary with the wavelength of the light being refracted. This phenomenon is called dispersion, and it is what causes white light to split ...

ZoomobjektivSony

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Zoom Objektiv Fujifilm

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Sep 16, 2022 — A magnifying glass causes an image on the retina which is larger than without the magnifier. In principle, the image on the retina can be ...

Modulation Transfer Function (MTF) is commonly used to qualify and evaluate the performance of imaging systems, such as lens assemblies. MTF is a useful tool ...

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Convex lenses are used to correct hyperopia (farsightedness), where the eye's lens fails to focus light directly on the retina. These lenses help converge light ...

ZoomobjektivNikon

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Zoomobjektivfür Handy

A Fresnel lens is a compact type of lens which was first used in lighthouses. The construction of these lenses allows for a large aperture and a short focal ...

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Their impressive product range encompasses 2D, 3D, and SWIR camera technologies, offering comprehensive image capture solutions suitable for various digital imaging applications, from enhancing factory automation to advancing medical imaging capabilities and beyond.

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ZoomobjektivCanon

Sep 27, 2012 — Collimation in terms of a reflector is setting the mirrors and eyepiece all in line and setting the secondary at the correct angle. The eyepiece ...

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I have for sale the 1969 edition of Edmond Scientific - Science Math and Optics catalog. 148 pages in good condition with order form and customer letter.

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The next higher class, IIIb ranges from 5 to 500 mW. You can also legally purchase this class of laser in the United States. But there are restrictions on it's ...

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