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2. Televue - Wikipedia

   en.wikipedia.org/wiki/Televue

   Additionally, Tele Vue eyepieces are well corrected for most aberrations, providing edge to edge pinpoint stars, and are well suited to use in popular "fast" telescopes. The most expensive Tele Vue eyepiece is the Ethos line, which consists of eight eyepieces known for excellent image quality and ultra-wide 100 degree fields, which can retail ...

3. List of telescope parts and construction - Wikipedia

   en.wikipedia.org/wiki/List_of_telescope_parts...

   Focuser: Allows the user to adjust the focus by moving the eyepiece along the optical axis. Eyepiece : Performs the final focus correction before the light reaches the eye. Charge-coupled device (CCD) : A light-sensitive integrated circuit digital sensor (commonly used in digital cameras) that turns light into an electrical charge used to ...

4. Orion Telescopes & Binoculars - Wikipedia

   en.wikipedia.org/wiki/Orion_Telescopes_&_Binoculars

   Orion ED120 apo refractor on Orion's Sirius EQ-G "GoTo" and GPS equipped German equatorial mount with portable 12 volt power supply. Orion sold a range of telescopes that they characterize as "beginner", "intermediate" or "advanced", including Newtonians, Maksutovs, Schmidt-Cassegrains, Ritchey-Chrétiens and refractors with or without (sold as optical tube assemblies or "OTA") a variety of ...

5. Director's viewfinder - Wikipedia

   en.wikipedia.org/wiki/Director's_viewfinder

   Lens finders are camera format specific and require the lenses that will be used in production. They can only be viewed by one individual at a time. Variations exist for different lens mounting systems, most typically Arri PL , Arri LPL, Panavision PV mount , Panavision SP70 and Mitchell BNCR mounts .

6. Sony E 55-210mm F4.5-6.3 OSS - Wikipedia

   en.wikipedia.org/wiki/Sony_E_55-210mm_F4.5-6.3_OSS

   The Sony E 55-210mm F4.5-6.3 OSS is a variable maximum aperture telephoto zoom lens for the Sony E-mount, released by Sony on August 24, 2011. The lens is sometimes bundled with various Sony Alpha mirrorless cameras along with the Sony 16-50mm kit lens .

7. Telecentric lens - Wikipedia

   en.wikipedia.org/wiki/Telecentric_lens

   A telecentric lens is a special optical lens (often an objective lens or a camera lens) that has its entrance or exit pupil, or both, at infinity. The size of images produced by a telecentric lens is insensitive to either the distance between an object being imaged and the lens, or the distance between the image plane and the lens, or both, and ...