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2. Tower viewer - Wikipedia

   en.wikipedia.org/wiki/Tower_viewer

   Directories: Some devices provide directories that guide users to easily target specific attractions within a tower viewer's field of vision.; Focus, magnification, and power: Some devices focus automatically, while others permit users to manually adjust a viewer's focus and magnification to suit their individual needs.

3. List of large optical telescopes - Wikipedia

   en.wikipedia.org/wiki/List_of_large_optical...

   This is a list of large optical telescopes. For telescopes larger than 3 meters in aperture see List of largest optical reflecting telescopes . This list combines large or expensive reflecting telescopes from any era, as what constitutes famous reflector has changed over time.

4. Tasco - Wikipedia

   en.wikipedia.org/wiki/Tasco

   Tasco's telescopes have a reputation as entry-level equipment. [2] [3] It is one of several companies advertising their products based on claims of high magnification, far beyond any attainable usable magnification. [2] Tasco's telescopes tend to be referred to as "department store telescopes."

5. List of largest optical reflecting telescopes - Wikipedia

   en.wikipedia.org/wiki/List_of_largest_optical...

   Multiple mirror telescopes that are on the same mount and can form a single combined image are ranked by their equivalent aperture. Fixed altitude telescopes (e.g. HET) are also ranked by their equivalent aperture. All telescopes with an effective aperture of at least 3.00 metres (118 in) at visible or near-infrared wavelengths are included.

6. Meade ETX telescope - Wikipedia

   en.wikipedia.org/wiki/Meade_ETX_telescope

   The ETX started out as a 90 mm (3-1/2") Maksutov Cassegrain telescope (first produced in 1996) and took advantage of high volume mass production and simplified optical and parts construction to open a new market for a cheap alternative to the very expensive Questar 3-1/2 Maksutov Cassegrain [1] [2] The ETX "line" has been expanded to 105 mm, and 125 mm Maksutov Cassegrains and achromatic ...

7. New NASA telescope's 1st photo is stunning image from ... - AOL

   www.aol.com/nasa-telescopes-1st-photo-stunning...

   The first sharp image from NASA's James Webb Space Telescope captured a stunningly clear photo of a twinkling star roughly more than 2,000 light-years away from Earth. The photo, released on ...