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Features-Explorer-II-7-21mm-zoom-eyepiece-VID191i - Orion Telescopes

2,870 views · Published 10 September 2013 · 1:04 · Indexed 16 October 2026

Channel: Orion Telescopes & Binoculars · 2013 · Science & Technology

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The Orion Explorer II Zoom eyepiece lets you change magnification power without physically changing eyepieces.

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Now even the casual telescope user can enjoy the benefits of zoom eyepiece technology. A twist of the affordable 7-21mm Orion Explorer II Zoom Telescope Eyepiece housing changes the focal length from 21mm to 7mm, or to any focal length in between. That makes it ideal for locating an object at low magnification, then zooming in at higher magnifications for closer inspection. Without changing eyepieces! Actual magnification range will depend on the focal length of your telescope. It works equally well for astronomical or terrestrial viewing. This four-lens telescope eyepiece boasts fully coated optics and exceptionally long eye relief ranging from 33mm to 16mm. Apparent field of view is 30° at 21mm and 43° at 7mm. Rubber traction ring ensures a good grip. The 1.25" barrel is threaded for filters. A nice value in a quality zoom eyepiece!

View our complete line of Telescope Eyepieces: http://bit.ly/29MFUmn 

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Since 1975 Orion Telescopes & Binoculars has been offering telescopes for sale direct to customers, with an unswerving commitment to best quality products, value and unmatched customer care. Our 100% satisfaction guarantee says it all. Orion offers telescopes for every level: Beginner, Intermediate, Advanced, and Expert. From our entry level beginner telescopes for amateur astronomers to our Dobsonian telescopes to our most advanced Cassegrain telescopes and accessories, you can find the best telescope for you.

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