Telescopes > TS Optics > TS Optics Ritchey-Chretien RC 304/2432 Pro OTA

Product no.: 56287

Ritchey-Chretien RC 304/2432 Pro OTA

Name: TS Optics Ritchey-Chretien RC 304/2432 Pro OTA
Brand: TS Optics
Price: 3940 USD

$ 3,940.00 incl. VAT, plus shipping costs

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Product description Specifications Recommended accessories Customer reviews (0)

Product description

TS Optics is a brand of Teleskop-Service.

Specifications

Optics

A telescope tube is referred to as an optic because it contains the components necessary to collect and concentrate light.

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Type

There are basically two different types of telescope. A distinction is made between refractor (lens) and reflector (mirror) telescopes.

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Reflector

Type of build

Describes the exact structure of the telescope thereby further subdividing the different types of telescope.

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Ritchey-Chretien

Aperture (mm)

Aperture

The aperture indicates the diameter of the objective lens or the mirror.

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304

Focal length (mm)

Focal length

This is the distance between the objective lens or mirror and the focal point.

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2432

Aperture ratio (f/)

Aperture ratio

Is the ratio of the aperture to the focal length of a telescope.

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Resolving capacity

The ability of the optic to discern the fine detail of objects that are close together.

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0,38

Limit value (mag)

Limit value

Describes the brightness of a star or point-shaped object, which can still just be distinguished by the telescope. The naked eye, for example, can make out stars with a magnitude of up to 6.

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14,2

Light gathering capacity

Light-gathering capacity of the telescope compared to the eye.

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1890

Max. useful magnification

The telescope’s magnification should not exceed this factor, because otherwise the image will appear weak and dark.

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608

Tube weight (kg)

Tube weight

The weight of the tube is critical for the correct choice of mount.

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20,5

Tube length (mm)

Tube length

Including eyepiece, but excluding dew cap.

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890

tube diameter (mm)

356

Tube material

Most telescopes are made of steel, aluminium or carbon fibre.

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Steel

Coating

SiO2

Tube construction

Full tube

Reflector

Special characteristics which only reflectors possess, can be found under this heading.

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Secondary mirror diameter (mm)

150

reflectivity

Ventilation for central mirror

Ventilation for primary mirror

Fan for a quicker alignment of the mirror temperature to the ambient temperature.

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yes

Secondary mirror obstruction

The shadow effect of the telescope optics due to the secondary mirror, because this lies in the optical path.

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Main mirror´s construction

Main mirror construction

Here, the construction type means the geometric shape of the primary mirror.

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hyperbolic

Secondary mirror material

Quartz

Primary mirror - Material

Quartz

Focuser

A focuser is used to hold an eyepiece. The image can be focussed using the focus wheels on the side.

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Backfocus (mm)

Backfocus

The position of the focus, measured from the plug connection, with the eyepiece fully retracted.

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127

Type of build

There are basically two different construction types: the rack and pinion focuser and the Crayford focuser.

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Monorail

Connecting threaded socket (camera-side)

M69x1

Connection ( to eyepiece)

Focusers are available in 1.25" or 2" formats. Many 2" focusers also have a 1.25" adapter.

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Ring clamp

yes

Gear reduction

1:10 Fine movement

Rotating

yes

Motorized

optional

Mount

A mount is the foundation of an astronomical telescope. It usually consists of the mount head and an appropriate tripod.

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Mounting type

Are mainly differentiated between equatorial and altazimuth. A special type of altazimuth mount is the Dobsonian mount.

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no mount

GoTo control

Object positioning system, available in real GoTo and also PushTo versions.

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Type of build

Describes the exact construction of the particular mount and thereby further subdivides the different types of mount.

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OTA

An OTA is an optical tube without a mount. It is short for optical tube assembly.

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Included accessories

Many telescopes came with simple accessories.

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Eyepiece adaptor

1,25" - 2"

Prism rail

Losmandy-Style

Tube clamps

yes

Extension tubes

yes

Finder scope

A mini telescope used to locate a celestial object. There are optical finders and red dot finders.

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without

Deviating optics

Erecting systems

A telescope always displays an object upside down. This law of optics can only be compensated for by an erecting system. Erecting lenses, diagonal mirrors or Amici prisms provide you with an upright image. Diagonal mirrors provide an upright but back-to-front image and Amici prisms provide an upright and right-sided image.

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Area of application

The area of application will give you a broad overview of the purposes for which the telescope is suited.

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Astrophotography

yes (very good)

Moon & Planets

yes

Nature Observation

Nebulae & galaxies

yes

Sun

Telescopes for safe solar observing.

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no (Only with appropriate Sun filter)

Recommended for

Recommended for...

The classification of the telescopes according to their suitability for beginners, advanced or observatories is useful as an initial orientation.

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Beginners

Telescopes that are supplied as a complete system and are easy to operate.

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Advanced

Telescopes for experienced observers, but also for ambitious beginners.

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yes

Observatories

Telescopes suitable for a fixed mount, whether that is in the garden or an observatory.

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yes

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Monorail focuser (a further development of the Crayford focuser)

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