Wholesale price for 6309-1 Motor bearings to Buenos Aires Factories
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An overview of the Apertura family of Dobsonian Telescopes from http://www.opticsmart.com/telescopes/dobsonian-telescopes.html?manufacturer=1
A popular saying in astronomy is that “Aperture is King”, and Dobsonian Telescopes are the kings of aperture! The aperture refers to the diameter of the primary mirror, and Apertura Dobsonians come in three sizes — the AD8 with an 8″ mirror, the AD10 with a 10″ mirror, and the AD12 with a 12″ mirror.
In addition to their impressively powerful optics, these scopes come with a lot of other great features. First is the base, where the Dobsonian telescope gets its name. With a Dobsonian base you get a simple, durable base that is intuitive and fun to use. And Apertura Dobsonian bases are well known for their incredibly smooth movements, thanks to a roller bearing turntable for easy azimuth movements and a durable ball-bearing clutch in the side bearings for precise altitude adjustments.
These scopes also include a Dual-Speed Crayford-Style focuser with a 10:1 precision micro-focuser knob which lets you really fine-tune the focus for the sharpest images. And this is a full-size 2″ focuser that also comes with an adapter, allowing you to use any 2″ or 1 1/4″ eyepiece.
Another great feature is the Right Angle, Correct Image (RACI) finderscope. Notice that the eyepiece is turned up at a right angle so that looking through the finderscope is comfortable and doesn’t strain your neck. And “Correct Image” means that when you look through the finderscope, the image will be right-side-up and properly oriented left-to-right, which makes finding objects in the sky much easier, especially when using a star chart.
These scopes come with two eyepieces — a 9mm eyepiece that gives you high magnification with a narrower field of view and a 30mm eyepiece that gives you lower magnification but with a much wider field of view. We also include a 35mm extension tube that provides additional back-focus necessary for some eyepieces and accessories.
And these telescopes gather so much light that a bright object like the moon can be TOO bright, so a Moon Filter is included for comfortable Lunar observing.
We’ve also included a Laser Collimator that makes it easy to get the scope properly collimated for the best possible image quality.
Another feature that we made standard on the Apertura Dobonian is the battery operated fan, which helps quickly equalize the temperature of the primary mirror with the outside ambient air temperature, which is critical for good optical performance.
And, last but not least, each scope comes with a Dust cap to help protect the optics when not in use.
Each Apertura Dobsonian Telescope comes with all of these great features, so you can simply choose the model that best fits your budget and portability needs. Whether you’re a novice just getting started, or an experienced amateur astronomer, the Apertura Dobsonian Telescope is a high quality instrument that delivers a lot of BANG FOR THE BUCK, and will give you a lifetime of great viewing experiences.
And be sure to check out our optional Tweaker’s Dream Package which includes many of the most popular upgrades and modifications for maximum performance and convenience. This professionally installed package is available exclusively at Opticsmart.com
To learn more and to purchase an Apertura Dobsonian Telescope, please give us a call or visit http://www.opticsmart.com.
For more great product videos, please check out http://www.youtube.com/user/opticsmart
By Riva from South Korea - 2016.12.31 14:53
This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
By Gustave from Israel - 2015.06.05 13:10