questar telescopes pricing

A selection of Questar and third party eyepieces that might serve your observing goals better. Click on a thumbnail to see full-sized image. 2425mm EFL f/13.6 tube assembly and tripod mount, Star Chart barrel skin, lens cap, 16mm (152-303x) and 24mm (101-202x) … Click here for Flickr page. A dust cap and thread-on lens shade are standard, as is a hard carrying case. In essence, when observing, you are usually looking through bubbles of disturbed air - microcells typically 4" in diameter in the layer of the atmosphere nearest the surface of the Earth. Over 20 Years of Packaging Solutions… For more than 20 years, Questar has been the leading provider of UN certified Performance Oriented Packaging for the waste industry. Questar Telescopes. A useful upgrade to consider would be to substitute a broadband coatings package on the optics in lieu of the standard magnesium fluoride coatings. Simply this: a fanatical devotion to hand-crafted accuracy. - Questar Standard Telescope with Case and Field Tripod Catadioptric Apochromatic. The Seven Astro uses a 7" diameter meniscus corrector lens of Grade A BK7 optical glass, with magnesium fluoride anti-reflection coatings for high light transmission and minimal reflected light loss. There's a problem loading this menu right now. $1200 isn't pocket change, of course, and this 180 mm Mak costs more than your run-of-the-mill 8" SCT, but try pricing a Questar 7. In addition, a Questar's central baffle tube is not merely black plastic or painted black to reduce reflections, as with lesser scopes, but is a centerless ground stainless steel tube, anodized matte black and containing a wire helix with 19 internal knife-edge baffles to eliminate low-angle reflections that no paint alone can stop. Early use of the Questar on manned space flights was classified. The small secondary mirror of a Questar Seven Maksutov (only 1.87" in diameter) scatters far less light than a 14" Schmidt-Cassegrain's much larger 4.5" secondary. Download the Celestron PWI Telescope Control Software. Most commercial telescopes claim to be "diffraction-limited" (which is generally assumed to mean 1/4th wave accuracy). As with any Pyrex mirror telescope, if the difference in temperature between indoors and outdoors is 30 degrees or more when a Questar is taken outside, minor refocusing will be required as its mirror contracts while cooling down to the outdoor air temperature. Based on their high price, when I launched my business in 1972 I specialised in the design and manufacture of Maksutovs offering a 90mm unit often called the "poor man's" Questar. The Standard stores in a carrying case that has pockets for the included tabletop legs, extra eyepiece, solar Filter and AC adapter cord, as well as a pocket for the optional Powerguide Controller. A second reason is the turbulent Earth atmosphere all telescopes must look through. Optics ZS80II ED, Orion OBS. This scope is confirmed as being 1/8W by Questar, and quartz remains more stable during temperature changes. I have owned a couple of Questars and used several others, they are very nice telescopes optically and the overall appearance is second to none. As a Rolls-Royce is to automobiles, so is a Questar to telescopes - the very finest hand-crafted optical performance that money can buy. Questar Instruction Manual would cost $20.00; please add $3.50 for postage/UPS shipping. Questar A Brief History Introduction to Questar Products: Made in the United States Since 1950. enter. Those of us who grew up lusting after a Questar 7 experienced sticker shock (the good kind!) This significant difference in total system accuracy is one reason why a 7" Questar can routinely outresolve a 14" Schmidt-Cassegrain (or virtually any other larger aperture catadioptric or reflector scope) on globular clusters, binary stars, and lunar and planetary details - with the Questar invariably exceeding Dawes' limit for the best resolution available from an optical system of its aperture. Questar’s Maximum-Resolution Solar Spectrometer attaches easily to any telescope that, according to its manufacturer, is compatible with solar observation and that has a 1.25" drawtube. Some people find the need for even an occasional refocusing to be annoying. Telescopes : Qmax Solar Spectrometer: The world’s first, Maximum-Resolution Solar Spectrometer TM capable of fitting comfortably in the palm of a hand. We have a great online selection at the lowest prices with Fast & Free shipping on many items! The result is that a Questar scatters less light from the bright areas of an image into the dark - crisply defining high contrast planetary and lunar details that a larger scope can wash out in a haze of scattered light. Reflector telescopes were incepted as an alternative to refracting telescopes in the early 17th century. Made in the United States Since 1950! 70 & Astroview 90, Orion Explorer 90 4.5 out of 5 stars 20 $69.00 $ 69 . Reflector telescopes are designed to allow a large objective diameter. 6204 Ingham Road - New Hope, PA 18938 - USA - Tel. The larger the aperture of the scope, the greater the image-blurring effect of these microcells, as the larger scopes simply have to look through more of these turbulent cells than a smaller scope. Top subscription boxes – right to your door, © 1996-2021, Amazon.com, Inc. or its affiliates. Make Offer. A thermally stable Zerodur ceramic mirror is also available as an option in place of the standard Pyrex mirror. Determining what is the best reflector or refractor telescope hugely depends on individual scope features. Questar telescopes, eyepieces and astronomy equipment for sale at Astronomics Robert J. Vanderbei Author of Sizing Up The Universe. SolarLite Filter for Telescope, fits ETX90, C-90, Questar 3.5, Wm. 1/4 … The Questar Seven Astro comes in a high impact ABS plastic sealed carrying case. Primary is immaculate. It has a 1" diameter knurled anodized aluminum focusing knob on the rear cell. What is it about a Questar that lets it outperform larger scopes on a day in/day out basis? This compares with a light loss of 1% per surface with standard magnesium fluoride antireflection coatings. In either case, it's a far cry from the 1/8th wave total system accuracy at the eyepiece of a Questar. The Questar Astro is precision-fabricated of lightened aluminum and titanium components, black and blue anodized for long life. The Questar 3.5inch aperture standard model is arguably the finest small telescope made on Earth-! It provides a magnification of 100x and a 0.53° field of view that's a little larger in diameter than the full Moon. However, the higher contrast of a Questar lets the multitude of galaxies and nebulas within its grasp stand out more distinctly against a darker sky background, particularly from light-polluted suburban or city sites where a larger scope's greater light-gathering capacity submerges subtle low-contrast deep space details in a fog of city light. The SLT telescopes also come equipped with tripods but these are notably less sturdy than those that come with the SE or Evolutions. Questar Wide-sky Telescopes. It measures 17.6" long (21.9" with the star diagonal in place). The same holds true with any other larger reflector or catadioptric telescope you care to name. This produces guaranteed total system performance at the Cassegrain focus of 1/8th wave or better. First production was in 1954. Celestron’s FREE planetarium app is an astronomy suite that redefines how you experience the night sky. when we saw the price - $1199 from Orion (the speckled blue Skywatcher version sells for about $1275.) Equatorial & Altazimuth Accessories & Adapters, Personal Planetariums / Electronic Sky Guides, Rechargeable Batteries And Power Supplies, Astronomics Used, Demo, Closeout, Spring Cleaning Page, Explore Scientific Sky Rocket to Savings In August, Explore Scientific APO Triplet Carbon Fiber, Explore Scientific APO Triplet FCD100 Carbon Fiber, Explore Scientific APO Triplet FCD100 Series, Explore Scientific APO Triplets Essential Series, Sky-Watcher Truss Tube Collapsible Dobsonian, Astro-Tech AT80EDT f/6 ED Triplet Refractor OTA, Tele Vue TV-76 3" (76mm) f/6.3 Evergreen Tube/Black Trim APO, Tele Vue TV-76 3" (76mm) f/6.3 Ivory Tube/Black Trim APO. That's twice the accuracy needed to meet Lord Rayleigh's Criterion, which specifies the level of optical excellence required to yield visual performance that is indistinguishable from perfect optics. Since a Zerodur mirror exhibits virtually no expansion or contraction as temperatures change, this option eliminates this need for refocusing. This optional dielectric multicoatings package includes ultra-high transmission/low reflectivity broadband dielectric multicoatings on both sides of its objective lens for a light loss of less than 1/10th of 1% per surface for the brightest possible images. Constant exposure to salt air can adversely affect the silver mirror coatings. Occasional visits to the shore are not a problem, only extended stays (particularly if the scope is not packed away in its case when not in use). With our certified … questar 12 for sale, complete with its original questar 12 mount and questar 12 pier. The 7.6" diameter primary mirror is Pyrex, aluminized, with a silicon monoxide (quartz) overcoating for long life. They all have larger light-scattering secondary or diagonal mirror obstructions than a 7" Questar Astro. Roger Ivester Supplemental: Questar Telescopes (Maksutov-Cassegrain) have been built in New Hope, Pennsylvania since 1950. For those individuals who appreciate the very finest that life has to offer, a Questar Seven Astro will prove to be an absolutely eye-opening revelation. This option is well worth considering due to the large thermal mass of the 7" mirror and its consequently longer cool-down time than a smaller scope. The Questar Astro weighs 19 pounds (with diagonal and eyepiece in place, 21 pounds if you add the thread-on dew shield). However, they do not specify whether that is for individual components or the system as a whole. A precision linear rotor bearing, integrated with the mirror mounting, is matched to central tube thimble to minimize mirror shift when focusing. Questar Catadioptric Apochromatic Telescope. 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While the 14" scope was brighter on the fainter objects, the superior contrast and resolution of the Questar Seven was easily visible . However, they do not specify whether that is for individual components or the system as a whole. The third type, optical telescopes, use both lens and mirrors. A 1.25" Questar Brandon eyepiece is supplied with the scope to get you started observing. A swivel coupling allows the eyepiece/diagonal combination to be tilted from side to side to the most comfortable observing position. This broadband coatings package is not recommended if you live full time on ocean-front property, or spend much of the year at the seaside. All Rights Reserved. Compound telescopes are also relatively easy to use, and they require little maintenance. See more ideas about telescopes, amateur astronomy, telescope. Questar Gallery Astrophotographs by . The Questar Standard 3.5 has long been regarded as the finest personal telescope in the world. Questar Corporation is the world’s leading innovator and manufacturer of Maksutov Cassegrain Catadioptric astronomical, birding, surveillance and laboratory optical systems. I have both broadband coatings and a Zerodur mirror on my Questar Seven and can recommend them without reservation. Offered for sale is my 1967 Questar 3.5 with the quartz mirror option. The Questar Seven Astro optical tube uses the well-known TeleVue Starbeam red dot unity-power illuminated finder that makes pointing a telescope as easy as pointing your finger. The Questar in space. Finally, there is the matter of contrast. The Crêpe Ring and Encke's Division in the rings of Saturn are routine with a Seven in good seeing, as are myriad whorls and festoons in Jupiter's belts and hundreds of sub-kilometer craters on the lunar surface. Questar Standard Telescope with Case and Field Tripod Catadioptric Apochromatic. And because you can easily connect a computer to a compound unit for aiming the telescope, you’ll enjoy immediate success in finding stars and planets. Related: used telescopes brandon eyepiece vintage telescope questar telescope wedge unitron telescope solar telescope microscope vernonscope maksutov telescope sears telescope postcards montgomery alabama astroscan Its telescopes produced for the consumer market are sold under the brand name "Questar". Get the best deals for questar telescope at eBay.com. Three Versions: 3/8 thread. It is well-balanced and relatively light, allowing it to be mounted on any suitably sturdy tripod for terrestrial operation. The knob focuses the scope by turning a spring-loaded 32-pitch stainless steel focus rod that acts directly on the mirror thimble to move the primary mirror within the optical tube. Our professionally trained team has extensive knowledge of DOT and UN packaging requirements. This Questar is protected by a ten-year Questar warranty (two-year warranty on the focuser mechanism). The Questar Seven has the same optical perfection and Maksutov design as its little companion the Questar 3.5 telescope. Astronomics is a family-owned business that has been supplying amateur astronomers, schools, businesses, and government agencies with the right optical equipment and the right advice since 1979. The Questar is known for a series of spaceflight firsts. Observe the heavens through a Questar Seven Astro optical tube, and you'll see detail and clarity in the skies that you have never seen before through a lesser scope . Each optical element in a Questar typically tests out at a truly outstanding 1/50th wave accuracy (shaped to within four ten-millionths of an inch of perfection!) Price includes blue and black anodized, precision machined and lightened aluminum and titanium components. Questar Corporation is a company based in New Hope, Pennsylvania.It manufactures precision optical devices for consumer, industrial, aerospace, and military markets. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. Absolutely pinpoint resolution, total freedom from spurious color and distortion, with an image clarity and contrast in a class all its own - a Questar is truly the Rolls-Royce of telescopes. All Astrophotos taken with, or piggybacked on, a 3.5" Questar. 680 24th Avenue SW Norman, OK, 73069, USA © 2021 Astronomics.com. QUESTAR SEVEN CLASSIC TITANIUM LIGHTWEIGHT BARREL ASSEMBLY----- (Back to Contents). . The Questar Astro comes with a 2" mirror star diagonal (with a 1.25" eyepiece adapter for Questar Brandon eyepieces) that threads onto the rear cell. Because reflector telescopes have an open tube on one end, they collect dust and require regular cleaning. Questar High Resolution Solar Spectrometer Set, 3-1/2 (QMAX™) PN 19650: $4,250.00: Questar High Resolution Solar Spectrometer Set, 7 (QMAX™) PN 29650: $5,295.00: IR Prefilter 147mm for 7 High Resolution Solar Spectrometer (QMAX™) PN 29650-FIL: $1,095.00: Slit Tracker in 24mm Eyepiece, to QMAX™ to Solar Disc and Solar Filter, PN 19655: $585.00 Apr 11, 2014 - This board is about the Questar telescope, the brain child of Lawrence Braymer. . You’re seeing this ad based on the product’s relevance to your search query. Both are of the same superb quality, but the Questar Seven has twice the resolving power, four times the light grasp and two times the effective focal length of the Questar 3.5. Make Offer. The low profile mounting adapter block on the underside of the Astro has both 1/4"-20 and 3/8"-16 mounting holes to allow to be installed on the Questar Equatorial Fork Mount (our part #20004) and Questar Large Astro Pier (our part #29338) for astronomical use. The remarkable performance of Questar's new wide-sky telescopes-in comet seeking, variable star observing, general sky scanning and for the observing of all deep-sky phenomena-dispels the popular misconception that short focal lengths (f/3 to f/5) are essential for effective deep-sky observing and optimum image brightness. Observe through a Questar Seven Astro, and you'll see detail and clarity in the skies that you have never seen through a lesser scope, or even through many larger scopes. As a Rolls-Royce is to automobiles, so is a Questar to telescopes - the very finest hand-crafted optical performance that money can buy.

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