This sale includes the optical tube, the rings, the case, and the Traveler accessory plate. The two air-glass surfaces have a multilayer antireflection coating that results in overall light transmission greater than 97% in peak visual wavelengths. You will appreciate the unique design and fine craftsmanship of this telescope. Click on image to see enlarged view (173,595 bytes), Right: Astro-Physics Traveler in its provided padded bag shown with stored Universal Astronomics UniStar Light Deluxe Alt-Az Head and Aluminum Post (52,130 bytes) Click on image to see enlarged view (155,880 bytes). Paperback. $1. Time travel may soon be possible, according to an astrophysicist who believes he’s worked out a way to build a time machine. 105 mm f6 TRAVELER EDT REFRACTOR (4.1" aperture) Right: Astro-Physics 105 Traveler Telescope with lens shade extended, and with optional Maxbright Diagonal, eyepiece, on an optional Model 400 GTO "Go-To" German Equatorial mount (185,898 bytes) Since 1991, … The 105 Traveler EDT is the culmination of years of optical research by Roland Christen of Astro-Physics. Sturdy padded carrying case (21-1/2" x 10-1/2" x 7") will fit in airline overhead storage compartments. Astrophysics is a branch of space science that applies the laws of physics and chemistry to explain the birth, life and death of stars, planets, galaxies, nebulae and other objects in the universe. Inspired designs on t-shirts, posters, stickers, home decor, and more by independent artists and designers from around the world. The Traveler is legend. The photos show the condition better than I … I've been using a Universal Astronomics dovetail, but that is not included in the sale. I am the original owner. For sale in my beloved AP Traveler with the smooth finish. Browse Amberton University (Amberton) classifieds in Garland, TX to find college housing, internships, tutors, student loans, textbooks and scholarships. 3.5" Astro-Physics focuser - silky smooth with a greaseless drawtube and the dual-speed mechanism of the FeatherTouch 9:1 Micro. The black exterior finish of the tube and dew cap will retain its deep. 24 made) Nikon 300mm T2.2 (300mm f/2) EDIF Lens - … The Traveler was the first advanced 4-inch Apo refractor designed to … The gorgeous tube assembly is precision machined in the Astro-Physics shop with the most modem CNC equipment available; there are no fragile die castings in this telescope. Astro-Physics does not make the 130EDT anymore, so this is a collector's item. Please check out the other astronomy and photography equipment that I also have available for sale, such as cameras, lenses and accessories. This book, while an introduction to astrophysics, really is an introduction for those already at a fairly high level of sophistication with theoretical physics and mathematics. Company Seven is a resource for the international amateur and professional astronomy community, and a registered U.S. Department of Defense contractor.A hub of the regional amateur astronomy community, we also consult to a number of organizations including for and not for profit media. Check out our astrophysics selection for the very best in unique or custom, handmade pieces from our accessories shops. Imagine a refractor with a 105mm (4.1") aperture, a versatile focal ratio of f6, in a tube assembly that has an overall length of 19 inches! Click on image to see enlarged view (173,595 bytes), Also shown left to right are optional Universal Astronomics UniStar Light Deluxe Alt-Az Head and Aluminum Post, Astro-Physics Maxbright 2 Inch Mirror Diagonal, and (58,267 bytes). Continental US sales only. This project aimed at developing a very fast and portable telescope that will allow you to enjoy sharp, high-contrast images wherever you go. lustrous beauty for many years. 0.8x CCD Telecompressor for 92mm Stowaway and 105mm Traveler. 50 Things To See With A Small Telescope John A Read. I've owned 2 Travelers over the past 2 years or so. We invite you to compare the optical performance and mechanical construction of any other scope of comparable size on the market today. Low magnification: for views of the faint deep sky objects a 32mm to 35mm focal length eyepiece. Includes original case. Its construction is extremely rugged to allow it to withstand all the handling that is typical of airline travel. Astro-Physics 3,5" Prime Focus Field Flattener # 1405351 € 1,008.91 Price excl. Astro-Physics. Quick view Astro-Physics. The 105 EDT has a fully machined tube assembly with a permanently aligned lens cell. Consequently, your focuser draw tube and 2 and 1.25" accessories are held securely in place. Inside and outside of focus, you will see an evenly illuminated, expanded disc with concentric Fresnel rings, the outermost ring brighter and wider than the rest. Astro-Physics. The tube has a few scratches. $700. More than a dozen knife-edge baffles are machined into the wall of the draw tube and painted flat black in order to maximize contrast by essentially eliminating any internal reflections. The two outer elements are chosen so that the combination is free of coma, spherical aberration and other higher-order aberrations. Astro-Physics, Inc. is world renowned for its premium quality refractors and uncompromising German equatorial mounts so I was fortunate to get an order in the first production run of the new 105mm Traveler refractor. ASTRO-PHYSICS OVERVIEW ... (Serial No. Astro-Physics. Requires 2.5" DoveLoc End Cap that comes with 92mm F6.65 Stowaway or EC2725 for Traveler. Expert machinist transforms solid, aircraft-quality aluminum stock into a fully baffled tube assembly with no less than twelve knife-edge baffles in the focuser draw tube alone. The Traveler's enormous success seems to have sprung out of nowhere, but Roland Christen has been building state of the art apochromats since the mid-1980's. Get the best deals for astro physics telescope at eBay.com. Astro Physics (AP) Traveler Review. The second one was superb optically (about 1/7th wave), the first one was only about 1/3 wave. Astrophysics is a science that employs the methods and principles of physics in the study of astronomical objects and phenomena. Or you can order it factory installed in your new Traveler telescope. For sale an Astro Physics Traveler with Feathertouch focuser, case, rings and extension tube. (92TCC) The 92 Stowaway’s Telecompressor Corrector (92TCC) is used to provide 0.80x image reduction wh I believe I am the second owner. As an added advantage, the brass will not mar the surface of your accessories. You may slso consider using our Astro-Physics 2" (2x) Barlow to double your magnification and increase overall versatility. The Traveler is an awesome performer both at night and during the day due to the superb figure of the lens and extremely efficient design of the optical system. Astro-Physics. The mechanical construction of the Traveler provides this scope will be completely trouble-free, and the optics will remain permanently aligned unless it suffers some catastrophic injury. Click on image for higher quality, enlarged view (151,858 bytes). Our superb Astro-Physics focuser is a very finely crafted unit with several unique features. Astro-Physics - 8.0" Astro-Physics Mounting Ring for 180 StarFire EDT/EDF, 206 StarFire EDF and other 8.0" Optical Tubes - Single Ring $225.00 SKU: ASP-80RING21 The first two prototype Travelers were completed in 1991 (one of the original two remains on display at Company Seven's showroom/museum collection, the other with Astro-Physics), after years of study and evolution of the Astro-Physics product line. The triplet lens is the same extraordinary quality that you have come to expect from Astro-Physics. According to the preface, Padmanabhan states, `I expect the reader to know the basics of classical and quantum mechanics, special relativity, electrodynamics, etc.' Based on light gathering area alone, the Traveler has 36% more light grasp than a 3.5" Maksutov and … The optics are in great condition just needs some cleaning. Middle Magnification eyepiece - usually between 80 to 120X, for views of the full Moon, Star Clusters, etc. Among the subjects studied are the Sun, other stars, galaxies, extrasolar planets, the interstellar medium and the cosmic microwave background. 400 German Equatorial Mount with Dual Axis Drive, Very high correction of spherical and chromatic aberrations, Visual and photographic focus is identical, eliminating the need for light absorbing filters, Clear, color free glass types result in brighter, more contrasting images, Stunning lunar/planetary and deep-sky views, Ideal for 35mm and medium-format deep-sky astrophotography, High-resolution optics are a good match for fine-grained Technical Pan emulsions, Low profile and lightweight mounting rings (pair), Felt lined dew cap slides over cell for compact 19-1/2" storage, Fully baffled tube and focuser assures highest contrast, Giant 2.7" focuser allows coverage of 6 x 7 cm formats, or optional photo visual telecompressors, 2" and 1.25" adapters with non-marring brass locking ring, Beautifully machined parts with lustrous black finish, Machined aluminum lens cover to protect against dust. The dust has not been noticealbe when observing. No small APO is made today that matches its combination of features. The components are machined to extremely high tolerances, assuring that there is no wiggle between the draw tube and housing. TeleVue's advanced designs include the "Nagler", "Radian", or "Panoptic" series eyepieces. $3,500. Whether traveling to exotic eclipse locations, to your favorite camping spot, to bird watching expeditions, or simply in your backyard, this little gem will provide you with years of observing pleasure. The inside diameter (I.D.) 130mm f6.3 StarFire GTX "Gran Turismo" with 3.5" Focuser (130GTX), 254mm F14.5 Maksutov-Cassegrain (254F145MC). These are fine as long as you realize this limitation. $9.49 #4. Professor Ron … Right: Feather Touch ® Focuser option on Astro-Physics 155 mm EDF Apo telescope, optional Astro-Physics 8x 50mm Finder also shown (54,384 bytes). Our credentials include support of mission critical aspects of: NASA Hubble Space Telescope … ... Sale Price $4.38 $ 4.38 $ 8.78 Original Price $8.78 (50% off) Favorite Add to Moon Astronaut Lover Gift Mug for Him Science Gift Space Geek Mugs Engineer Astrophysics … Seldom used, mint condition, Astro-Physics 105mm F/6 Traveler refractor. Astro-Physics telescopes are world-renowned for sharp, high-contrast image quality and mechanical construction. Recessed brass locking rings are installed at each thumbscrew location. 4.7 out of 5 stars 11,516. 48 Contiguous States: Free ground shipping for all shipments over $100 unless otherwise indicated. You can use standard accessories with the 2" and 1.25" adapters. Company 7's Astrophysics Traveler Page: Vote Highlights: Astro-Physics Traveler 105 EDFS. It does not include the Traveler dovetail bar as it didn't come with the scope when I bought it used. This is particularly important considering the heavy and expensive accessories that you may use. Right: Astro-Physics Traveler 4 inch telescope with optional Feather Touch® Focuser Pinion and Gear Reduction Assembly (53,738 bytes). (92TCC) The 92 Stowaway’s Telecompressor Corrector (92TCC) is used to … The optical design of the 105mm objective is identical to the StarFire EDF refractors. All orders are custom made and most ship worldwide within 24 hours. If you object to astigmatic images at the edge of the field, or if you require long eye relief (distance from lens to the eye) to accommodate spectacles, then Astro-Physics and Company Seven recommend the eyepieces of advanced designs such as those pioneered by Al Nagler, founder of the TeleVue company. Astrophysics for People in a Hurry Neil deGrasse Tyson. Colorfree on all the brightest stars and planets. Right: Astro-Physics Traveler with lens shade retracted stored in current model provided padded bag. All surfaces are spherical, which results in a very smooth overall figure. Hardcover. 2001 Splash National Travel Trailer $1,000 pic hide this posting restore restore this posting. The replacement Astro-Physics 130EDF sells new for $6,400. Requires 2.5" DoveLoc End Cap that comes with 92mm F6.65 Stowaway or 2725EC for Traveler (92FF) The 92 Stowaway’s Field Flattener (92FF) is used to correct the field curvature that is inhere Chemistry Statistics Algebra Physics C++ Java Essay Squad 20.4mi hide this posting restore restore this posting. 1 - 1st production lens) on 400QMD mount and tripod, 105mm EDT "Traveler" (one of the two prototypes, this one made for Martin of Company Seven). Note textured, painted finish now provided with the AP Traveler optical Tube. favorite this post Dec 14 ... 03 Dutchman 35ft Travel trailer 2 bedroom bunk house with super slide $8,800 (Lewisville tx) pic hide this posting restore restore this posting. Availability Distribution News Notes Overview Pricing Products, Accessories and Options Mounts Mount Control Systems Telescopes, Right: Astro-Physics 105 Traveler Telescope with lens shade extended, and with optional Maxbright Diagonal, eyepiece, on an optional Model 400 GTO "Go-To" German Equatorial mount (185,898 bytes), Since 1991, the standard against which all other 4" Apos are measured. Click on image for higher quality, enlarged view (151,858 bytes). Physics detector simulation facility, very powerful computer system, can run seven billion instructions per second: worth about $4 million, very good deal, cheap to operate. Even with that the images were superb for a 4" scope. Field Flattener for 92mm Stowaway and Traveler, Machined Covers. We have a great online selection at the lowest prices with Fast & Free shipping on many items! For a much more enjoyable and comfortable observing experience, Company Seven recommends the. Requires 2.5" DoveLoc End Cap that comes with 92mm F6.65 Stowaway or EC2725 for Traveler. 130mm f6.3 StarFire GTX "Gran Turismo" with 3.5" Focuser (130GTX) Astro-Physics introduced the re-imagined "Gran Turismo" at the Northeast Astronomy Forum (NEAF) on A. Later model with Feather Touch Focuser, 2.7" field flattner w/Pentax 6x7 adapter, AP finder scope, 2" AP diagonal. Astronomers will wish to at least initially set up this telescope with at least two or three 1.25" or 2" eyepieces to address: Plossl, Orthoscopic, Panoptic and older wide field eyepiece designs show sharp images only in the center of the field. favorite this post Dec 14 2020 - 5x8 Single Axle Big Tex Dump Trailer ... Food Truck for Sale $40,000 (Fort Worth) hide this posting restore restore this posting. Astro-Physics introduced the re-imagined "Gran Turismo" at the Northeast Astronomy Forum (NEAF) on A, Our new 254 mm f/14.5 Maksutov-Cassegrain generated a lot of excitement when we introduced the proto, Astro-Physics introduced the redesigned Stowaway at the Northeast Astro-Imaging Conference on April. of the draw tube is 2.7", this allows the avid astrophotographer to employ a medium-format camera to capture images in a 6 x 7 cm format with minimal vignetting. $13,900. High magnification: 200X or more for views of the planets, Astro-Physics has developed a new specially designed dual-speed pinion fine dual speed geared focuser assembly. Even at first glance, we knew the Traveler was a landmark achievement in Apo technology development; one can argue it remains today years ahead of its time since no one has been able to equal the overall optical and mechanical performance, and versatility of this telescope and its superbly engineered accessories. 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