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Questar Telescope

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Seymour Solar Telescope Filter (SF500) for Celestron: FirstScope 76, NexStar 4/4SE, C4, 102HD; Meade: ETX 105, DSX 102; Orion: ED 80/100, StarMax/Apex 102, AstroView 100, SkyView Pro 100; Tele Vue 101, 102; Questar 4.75"

This is a safe full aperture solar filter. This means that it allows the most light possible into the telescope because it allows the full aperture of your telescope to be viewed. The full aperture allows the best possible daytime viewing when there is minimal atmospheric turbulence. If turbulence is present a mask can be put over the end of the filter to effectively reduce the aperture. This premium solar filter has an aluminum cell that is secured to the tube end of the telescope with a three nylon thumb screws. The clear aperture is made with high quality hand selected and inspected reflective coated glass. This 5" full aperture glass solar filter is the highest quality, most durable solar filter on the market. The sun is safely viewed in a natural yellowish-orange image. The neutral density is 5 - 5.5. The filter can be used for direct viewing through the telescope or for photography. It will fit a telescope with a tube end (opposite the eyepiece) diameter of 4 7/8"(124mm) to 4 5/8"(117mm). You can measure the diameter of the end of your telescope to see if this filter will fit. This filter is new in the box in plastic. The filter box is foam lined for protection and shock absorption during handling. It is durable enough to store the filter while not in use. With the filter comes instructions for use and care.


Tele Vue Adapter for Questar 1.25".

Allows you to use 1.25" eyepieces on Questar scopes.Unleash the potential of your Questar. Just add this adapter to use any of the Tele Vue 1 1/4" eyepieces: Plossls, Radians, Panoptics, and Naglers!Experience a greater range of magnification, quick-change capability, and parfocalization (no need to adjust focus when changing eye pieces).Discover improved resolution, color correction and contrast due to the multicoating, blackened lens edges, and new designs.The threaded eyepiece barrels accept Nebular and other filters, if desired.And, with fields of view up to 82 degrees, diffraction limited anywhere in the field, your Questar 3 1/2 finally delivers the magnificent capability inherent in its design and construction. Overall, we recommend the Nagler 9mm and Panoptic 19mm.This finely crafted piece is CNC machined out of solid aluminum stock to complement the Questar. Its polished aluminum base has blackened anti-reflection threads on the inside aperture to improve contrast. A black anodized knurled focusing ring allows focusing to the Questar viewfinder optics, and a lock screw (with 2 locations for convenience) gives extra security.


Sky & Telescope - May, 2010

An amateur astronomy magazine with feature articles on new developments in the science, plus departments on books, observing, equipment, computer software and sky predictions.


Telescope Manufacturers: Meade Instruments, Questar Corporation, Warner

Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Chapters: Meade Instruments, Questar Corporation, Warner

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