The drive is smooth enough to provide flawless tracking of celestial objects for visual applications, although the telescope can easily be accessorized to introduce one into most types of film or CCD astrophotography. See, I didn't even know it was a Questar, all I knew aged 8 was that the illustration in my Ladybird Book of the Telescope was something special. Create an account to follow your favorite communities and start taking part in conversations. Telescope 130EQ Newtonian Reflector Telescopes for Adults, Professional Telescopes for Adults Astronomy, Comes with 1.5X Barlow Lens Smartphone Adapter & 13% T Moon Filter. I succumbed a while ago when I saw a Questar 3.5" Standard for sale on a Canadian astro buy sell site, and I could drive to meet him and eliminate the nail biting on the shipping end of things. So there are no eyepieces and also no holder. Would be more desirable if it had broadband optics, so that's a minus. After yesterday's $2900 Ebay sale of a 1959 Questar, this 1957 Questar on Ebay might do well with an enthusiastic auction is the key (and there are more enthusiastic buyers.) Though their native focal length is very long, a variety of focal reducers made for SCTs can allow them to be used at medium and ultra-short focal lengths, which transform them into excellent performers for deep sky astrophotography. Surface Wavefront Map (peaks and valleys), Surface Wavefront Profile (height and distance). Press question mark to learn the rest of the keyboard shortcuts. I love the sticker that First Light Optics (in the uk) Press J to jump to the feed. Questar related information and resources that I've found interesting, useful, and some that I've painfully had to learn myself are found here. Early broadband (not this one) reportedly sometimes had a short life. The moderator asks that this not be used to post about your own listings, nor to post listing here that have been listed elsewhere, such as in the ongoing "Classics" Ebay thread. In order to use newer eyepieces you need a different way to locate and point the telescope thus the laser pointer. The equatorial fork mount is made of a brushed cast aluminum which is then lacquered with a clear coat. I remember we looked at books on telescopes and I told him I had such a telescope at home, the Questar. Members can post 15 things to the pool each month. This group will count toward the photo's limit (60 for Pro members, 30 for free members). It's in perfect condit, Get the app for the best Gumtree experience, Copyright 2000-2022 Limited. How would the ebay buyer protection help, since he wants to be paid by check or money order? Quality and price don't necessarily have a linear relationship, either, as it requires exponentially more time from better trained craftsmen to improve the product beyond a certain point, though there certainly are differences in the cost of materials. The Duplex stores in a carrying case that has pockets for the included tabletop legs, extra eyepiece, solar Filter and AC adapter cord.SCTs are also arguably the most versatile telescope for sale today. The RA circle is universal for northern and southern hemispheres. The setting circle for Right Ascension and Declination is fully functional. It includes an AC powered synchronous clock drive motor and declination clamp. The equatorial fork mount is brushed cast aluminum, aircraft polyurethane painted, with friction drive alt-azimuth controls. The barrel rotates for viewing height adjustment. Included also are a star-diagonal prism, solar filter for finder lens, off-axis glass solar filter, and focusable eyepiece diopter. It provides three power changes per eyepiece, an internal finder and two telescopic powers. The control box has two (2) viewing ports with flick knob selection. In addition to the telescope’s legendary resolution, flatness of field and contrast, and has integrated features that are unavailable with other telescopes. The Questar Duplex 3.5 has long been regarded as the finest personal telescope in the world. Leather carrying case, tripod, power cord and lenses included
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |