Can I buy a telescope online?
Buying a telescope online can be difficult when there are so many types and styles to choose from – including Reflectors, Refractors, Astrographs, Dobsonian, Catadioptric, Schmidt-Cassegrain, Maksutov-Cassegrain, Smart Telescopes and Computerized Telescopes to name a few.
What is the best RC Telescope for astrophotography?
Smaller aperture RC telescopes are available for amateur astronomers who wish to work with an instrument that was designed for astro-imaging, including this inexpensive entry-level Ritchey-Chretien, the Apertura 6″ f/9 Ritchey-Chretien OTA telescope. The Ritchey-Chretien is designed for imaging.
Does high point scientific buy used telescopes?
Finally, we straight-up buy used telescopes, used astrophotography cameras and higher end used telescope accessories! Here is how that works: The first step towards selling all or part of your used telescope equipment to High Point Scientific is to fill out a Quote Request electronically and submit it to our Buy Back team.
What are the different sizes of refracting telescopes?
Refracting telescopes come in a variety of optical sizes, from the super portable inexpensive 50 mm to about 150 mm, or approximately 6″. The main difference in refractor designs, and why you will notice such a wide range of prices when shopping for a refractor, has to do with the number and quality of lenses used.
What is a DOB Smithsonian telescope?
A Dobsonian telescope for instance, is a Newtonian reflector on a simple rotating box-style mount. Because the Dobsonian mount is not made of metal and does not have heavy counterweights to contend with, one can buy a fairly big 8″ or 10″ Dobsonian telescope without too much trouble moving it around.
What makes a Ritchey-Chretien telescope different?
Most large Ritchey-Chretien telescopes have an open truss tube design rather than a closed tube to decrease the weight of the optical tube as a whole. The Ritchey-Chretien telescope design uses two hyperbolic mirrors to correct for coma and spherical aberration.