![]() A superb value larger aperture telescope that offers the best and simplest solution to observe deep sky objects with, the 10 inch parabolic mirror will provide excellent views with minimal setup time. By lifting the handles together, you can easily carry the whole unit in an upright position with the help of a friend. Sky-Watcher Dobsonians feature a unique patented Tensioner/Carrying handle. Primary mirror and secondary mirror with Radiant Aluminum Quartz (RAQ) coating providing up to 94% reflectivity with optimal durability and long term performance. Radiant Aluminum Quartz (RAQ) Mirror Coating The mount is designed to be driven by hand as opposed to slow motion controls. The secret of the design is to correctly balance the optical tube and to use frictional materials, which allow it to move easily when nudged but to stay in position when not. Fast and easy to set up, the Dobsonian mount consists of a box-type mounting which allows the telescope to pivot in altitude, while the box itself is rotated on a base in azimuth. ![]() The Dobsonian mount, popularized by John Dobson in the late 1970s, is a very simple but effective method of mounting a Newtonian Reflector, based on the alt-azimuth principle. These instruments offer an incredible aperture-to-price ratio. Smooth motions in both axis from the solidly constructed rocker box allow the use of higher magnifications for planetary observing, taking full advantage of the high resolution this instrument is capable of. Our mirrors are centre marked for ease of collimation.A superb value larger aperture telescope that offers the best and simplest solution to observe deep sky objects with, the 10 inch parabolic mirror will provide excellent views with minimal setup time. We coat our mirrors with aluminium in a vacuum coating chamber and finish with protected coating of SiO2 which guarantees the highest longevity and efficiency of 93% reflectivity.Īll our mirrors have serial numbers as well as a complete report of its testing. Please go through this essay on Float Glass Mirrors. Thin glass blanks of float glass achieve thermal stability quickly. Float glass is a softer than other glass materials and consequently it can be polished to a great degree of accuracy and smoothness. In the near future we will be in a position to offer fused glass primary mirrors of 38 mm thickness. We offer Primary Mirrors made from Float Glass, thickness 25 mm. A smooth surface provides a much better contrast at the eyepiece, and is especially beneficial for revealing fine detail on planetary surfaces. Apart from the Strehl ratio, we endeavour to produce an excellent smooth surface with no micro ripple or roughness. A Strehl ratio of 0.8 is good, 0.9 is excellent, 0.95 or better is outstanding. The best opticians now use the Strehl ratio for specifying the quality of primary mirrors. The mirrors are frequently tested for accuracy of overall figure as well as for the smoothness of the surface.Īll our Primary Mirrors are guaranteed to a Strehl Ratio of 0.90 or better. All our primary mirrors are precision made and finished with hand figuring to a perfect parabola. We have a complete in-house production facility. Reflectivity and quality of aluminisation and protective coating.Īt Aperture Telescopes, we offer Parabolic Primary Mirrors in diameters of:Īll proudly Made in India, right here at our optics shop at Manesar, Gurgaon. ![]() ![]()
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