Feature(may vary by option.)
●A twist of the zoom eyepiece housing changes focal length from 21mm to 7mm, providing a variety of viewing magnification powers. Excellent contrast and sharpness - making the zoom also of interest for planetary observing.
●Exceptionally long 16mm-to-33mm eye relief range allows eyeglass wearers to enjoy the entire view while still wearing their corrective lenses without vignetting. The Zoom eyepiece lets you change magnification power without physically changing eyepieces.
●Apparent field of view is 30- degree at 21mm and 43- degree at 7mm. Rubber traction ring ensures a good grip. The 1.25" barrel is threaded for filters. Actual magnification range will depend on the focal length of your telescope. It works equally well for astronomical or terrestrial viewing.
●Eyepiece consists of four elements which are fully coated with anti-reflection coatings for clear, high contrast views. The particularly large eye lens coupled with the long eye relief means the Zoom provides particularly good viewing comfort, the eyecup can folded down - handy for spectacle wearers.
●Comfortable viewing at every focal length setting - superior to most fixed focal length eyepieces, especially at the shorter focal length settings, precise and stepless adjustment from 7mm to 21mm. A nice value in a quality zoom eyepiece!
[1.25 7-21MM Zoom]
[1.25 8-24MM Zoom]
Description
Astromania is a manufacturer and trader specialized in the research, development and production of astronomical instruments with well-equipped testing facilities and strong technical force.
Our wide selection of over 500 Astromania accessories at great sale prices will help you get the best performance from your telescope each and every night.
Astromania has all the accessories you need to get the best performance from your telescope.
About 1.25" 7-21mm Zoom Eyepiece
Excellent contrast and sharpness -making zoom suitable for planetary observation.
With this zoom eyepiece, getting started in sky observation is childs play. The classic from the Zoom series enables sharp images and easy magnification of the Moon, planets and other fascinating deep-sky objects. And you can do it without having to dig deep into your wallet. Budding amateur astronomers will quickly achieve their first successes, even without a great deal of equipment.
Main Features:
- Super-premium 1.25-inch zoom eyepiece
- Focal length of 7 to 21 millimeters
- Allows for expanded magnification options
- Fully multicoated optics
Detail Display of Zoom Eyepiece
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Fully Multi-coated OpticsOptical coating technology reduces light reflection and refraction. In this way, the eyepieces ensure optimal transmission and brightness of light and a clear field of view. |
Safety GrooveSleek silver lens barrel with safety undercut reduces the possibility of the eyepiece slipping out of the telescope or diagonal, increasing the stability of the connection. |
Machined Grip RingThe intimate rubber traction ring design can increase the friction, so that it is easy to grasp and not easy to slip off. |
Blackened Lens EdgesThe blackening treatment of the edge of the lens can effectively prevent the reflection and achieve the maximum contrast, which is conducive to planetary observation. |
