Orion Explorer II 7-21mm Zoom Telescope Eyepiece
by Orion
(Click here)
Customers in the UK,
buy this product at amazon.co.uk
for British Pounds
Digital Photo Product Details
Manufacturer: OrionProduct features:
- The Orion Explorer II Zoom eyepiece lets you change magnification power without physically changing eyepieces
- A twist of the zoom eyepiece housing changes focal length from 21mm to 7mm, providing a variety of viewing magnification powers
- Eyepiece consists of four elements which are fully coated with anti-reflection coatings for clear, contrasty views
- Exceptionally long eye 33mm relief allows eyeglass wearers to enjoy the entire view while still wearing their corrective lenses without vignetting
- The 1.25" barrel is threaded for use with like-sized Orion eyepiece filters
- Medium Orion Deluxe Accessory Case
- 1.25" Orion Basic Set of Four Color Filters
- LensPEN Mini Pro - Precision Optical Lens Cleaning Tool
- Orion Deluxe 6-Piece Optics Cleaning Kit
- Orion Microfiber Optics Cleaning Cloth
Digital Cameras Photo Reviews of Orion Explorer II 7-21mm Zoom Telescope Eyepiece
Customer Review: Time and Aggravation Saver
Summary: 5 Stars
I am new to amateur astronomy and it can be intimidating how much there is to learn. After buying a large pair of astronomical binoculars I bought my first telescope, an ETX 60. Small, I know, but I'm testing the waters. After seeing this Orion eyepiece recommended for use on the ETX 60, I ordered it. The 9 mm and 25 mm eyepieces that came with the scope worked fine, but I was looking for whatever I could to enhance the experience.
It arrived very quickly, in good condition, and works great. The quality of the view is high and at least as good as the eyepieces that came with the scope. The variability ability is a great plus for two reasons.
First, it is a time and hassle saver. You do not have to take the time to find an object with one eyepiece and then change it out to get a closer look. Just twist the eyepiece and do some tweaking with the focus. Being knew and still somewhat clumsy around my scope, I also like having to avoid loosening the eyepiece holder, removing the eyepiece, and putting a new one in. I was often bumping something and altering the picture and thus losing my find. Not so with the variably eyepiece. Get your object in sight and just focus in.
Second, the range you get in one eyepiece. 25 mm was nice and so was 9 mm. But they are not ideal for every object in all lighting conditions. Being able to "surf" through various settings to find the best view is also a big advantage.
Finding useful accessories like this is nice for a beginner like me. It simplifies the process and makes me more likely to get out there and do more stargazing.
Description of Orion Explorer II 7-21mm Zoom Telescope Eyepiece
Now even the casual telescope user can enjoy the benefits of zoom eyepiece technology. A twist of the affordable Explorer II Zoom 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 eyepiece boasts fully coated optics and exceptionally long eye relief ranging from 33mm to 16mm. Apparent field of view is 30-deg at 21mm and 43-deg 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!Eyepieces
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