Archive for June, 2010
06 28th, 2010
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Celestron Ultima Barlow Lens List Price:  |
Description
The Celestron Ultima 2x Barlow Lens is a popular choice among amateur astronomers who want the best performance from their optics. The Ultima Series 1.25" 2x Barlow is an air-spaced, 3-element apochromatic design with a 27mm clear aperture. This lens features a very high quality, fully multicoated design. Amazingly compact and lightweight, it's just 5 ounces and 2.75" in length.
Features
- Doubles the magnifying power of your eyepiece by doubling its effective focal length
- Air-spaced, three-element apochromatic design with a 27mm clear aperture
- Amazingly compact and lightweight--just 5 ounces and 2.75 inches in length
Reviews
Related Blogs
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Choosing and Using a New CAT: Getting the Most from Your Schmidt Cassegrain or Any Catadioptric Telescope (Patrick Moore's Practical Astronomy Series) List Price: Sale Price: $17.97 You save: $11.98 (40%)  Eligible for free shipping!Availability: Usually ships in 24 hours |
Description
Choosing and Using the New CAT will supersede the author’s successful Choosing and Using a Schmidt-Cassegrain Telescope, which has enjoyed enthusiastic support from the amateur astronomy community for the past seven years. Since the first book was published, a lot has changed in the technology of amateur astronomy. The sophistication and variety of the telescopes available to amateurs has increased dramatically. Computerized SCTs, Maksutov-Cassegrains, and most recently Meade’s new and acclaimed Ritchey-Chrétiens have come to dominate the market. That means that all amateurs considering the purchase of a new telescope (not only a SCT, and not just beginners) will benefit from this detailed guide. Choosing the right telescope for particular kinds of observation (or even for general work) is far from easy – but Rod Mollise gives invaluable advice and guidance.
Reviews
