Are Questar telescopes still made?

Are Questar telescopes still made?

Questar was founded in 1950 by Lawrence Braymer, who set up Questar to develop and market Maksutov telescopes and other optical devices for the consumer, industrial, and government customers. The Questar Standard telescope has been in production since 1954.

What kind of telescope is a Questar?

Cassegrain
So the Questar is a type of Cassegrain with a thick corrector plate at the front and the secondary mirror as a fixed silvered spot on the back of the corrector.

At A Glance.

Telescope Questar Standard, Duplex
Focal Length 1280mm
Focal Ratio F14.2
Central Obstruction (incl. holder/baffle) ~ 33%
Length ~ 27cm

How much is a Questar telescope?

Questar 3-½ Astronomical/Multi-mission Instruments

Model Telescope Configuration Price
Standard 3-½ Zerodur Mirror, Broad Band & Low Reflection Coatings, Mdl. 10314 $5,875.00
Duplex 3.5 Pyrex Mirror, Magnesium Fluoride Coatings, Mdl. 10113 $5500.00
Duplex 3.5 Pyrex Mirror, Broad Band & Low Reflection Coatings, Mdl. 10213 $5,875.00

How Do you use a Questar telescope?

All you need to do is have the tripod base mounting against the telescope base and the tripod screw. Goes up into this screw in the center of the base.

What is Maksutov Cassegrain?

Maksutov-Cassegrain telescopes are a catadioptric design, meaning they use both lenses and mirrors. Mak-Casses are primarily reflectingtelescopes, but they use a corrector lens to eliminate aberrations that would result from the mirror design alone.

How do you focus a Questar telescope?

Turn counterclockwise to use the telescope. The finderscope cannot be focused with the telescope’s focus knob – instead, twist the top of the Questar eyepiece to focus. The finderscope cannot be focused at all with the reticle eyepiece in place.

Which is better Schmidt Cassegrain or Maksutov-Cassegrain?

In short, a Maksutov-cassegrain telescope is generally better for planet viewing due to the narrow and generally large focal ratios, however this also does compromise the astrophotography performance of Mak telescopes, which is an area Schmidt-Cassegrain telescopes don’t suffer nearly as much from whilst still having …

Which is better Newtonian or Cassegrain telescope?

Newtonians are better for viewing deep space objects. Maksutov-Cassegrains are better for observing planets and the Moon. Newtonians are better backyard telescopes.

Why Cassegrain telescope is better than Newtonian telescope?

Since the light goes a longer distance within a Cassegrain telescope than a Newton telescope of the same length, the focal length of the primary mirror can be made longer. Conversely, for two telescopes with the same focal distance, the Cassegrain will be shorter than the Newton telescope.

What is Maksutov-Cassegrain good for?

A well-built Mak-Cass can be an excellent telescope, but they are primarily intended more for visual use or planetary imaging and not so much for deep-sky photography. SCTs tend to be better suited to deep-sky imaging, making them a more popular choice.

What is the best type of telescope for viewing planets?

11 best telescopes for seeing the planets

  • Sky-Watcher SkyMax 180 Pro Maksutov.
  • Celestron Astro Fi 5 Schmidt-Cassegrain Wi-Fi system.
  • Orion StarSeeker IV 150mm GoTo Mak-Cass Telescope.
  • Explore Scientific Carbon Fibre 127mm triplet apo refractor.
  • Sky-Watcher Evostar-90 AZ Pronto telescope mount.

Which telescope type is best?

A reflector telescope is said to be the best value for your money, as they offer the most aperture for your dollar. For example, a 6-inch diameter refractor telescope can cost up to 10X as much as a 6-inch Newtonian reflector.

Is a Cassegrain better than a reflector?

Summary. Maksutov-Cassegrain telescopes are better suited for those who want the additional function of a GoTo mount and don’t want to take up too much space when storing it, whereas reflectors will typically be the most cost efficient per aperture devices out there but are also more bulky.

Which is better Schmidt Cassegrain or Maksutov?

What size telescope do I need to see Saturn’s rings?

The rings of Saturn should be visible in even the smallest telescope at 25x. A good 3-inch scope at 50x can show them as a separate structure detached on all sides from the ball of the planet.

What size telescope do you need to see planets?

Telescopes that have 4 or 5 inch diameters are great for viewing solar system objects like the planets, our Moon, and Jupiter’s moons.

Is a cheap telescope worth it?

Most telescopes that cost less than $150 will have low optical quality and aren’t really worth it. We suggest getting good binoculars instead. Stay away from any telescope advertised for its magnifying power. A telescope’s most important attribute is its size, meaning the diameter of its main mirror or lens.

Which telescope is best for viewing planets?

What is the best size telescope for viewing planets?

Telescopes that have 4 or 5 inch diameters are great for viewing solar system objects like the planets, our Moon, and Jupiter’s moons. Viewing Neptune and Uranus can be difficult with a scope this small but it’s not impossible. A telescope of this size is probably a good starting point for a complete beginner.

What telescope can I see Jupiter with?

For serious viewing of Jupiter, a telescope with an aperture of 4 to 6 inches is best. Magnification on these scopes can range from 40x to 200x. At high magnifications, you even get to see the Great Red Spot. A great telescope to see Jupiter is the Celestron AstroFi 102 Telescope.

What is a good telescope to see Saturn’s rings?

Maksutov-Cassegrain and Schmidt-Cassegrain telescopes (ranging from 4″ to 14″ in aperture) are our best picks for observing Saturn due to their increased light gathering ability, longer focal lengths, and ability to accommodate higher magnifications (150x or more).

What kind of telescope is best for viewing planets?

What magnification telescope do I need to see planets?

Experienced planetary observers use 20x to 30x per inch of aperture to see the most planetary detail. Double-star observers go higher, up to 50x per inch (which corresponds to a ½-mm exit pupil). Beyond this, telescope magnification power and eye limitations degrade the view.

What magnification do you need to see Jupiter?

To look at planets like Jupiter and Saturn, you will need a magnification of about 180; with that you should be able to see the planets and their moons. If you want to look at the planet alone with higher resolution, you will need a magnification of about 380.

What telescope can I see galaxies with?

For example, if you’re wanting to view faint deep-sky objects like nebulas and galaxies then you’ll want a reflector telescope. On the other hand, a refractor telescope is better suited for views within our own galaxy such as the moon and other planets.

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