Telescopes > Pro RC > Knaeble Ritchey-Chretien RCM 400 FC/Ti

Product no.: 33672

Ritchey-Chretien RCM 400 FC/Ti

Name: Knaeble Ritchey-Chretien RCM 400 FC/Ti
Brand: Knaeble
Price: 38389.7 USD

$ 38,389.70 incl. VAT plus shipping costs

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Product description Specifications Recommended accessories Customer reviews (0) Product safety

Product description

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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400

Focal length (mm)

Focal length

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

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3240

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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0,29

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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14,8

Light gathering capacity

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

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3270

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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800

Tube construction

Truss Tube

Truss tube

In contrast to the solid tube, here the optical tube is constructed of rods.

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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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Type of build

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

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Crayford

A Crayford focuser is a ball bearing guided friction drive and allows a very precise adjustment of the focus.

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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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2 (with SC thread)

Gear reduction

1:10 fine focusing

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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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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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

General

Total weight (kg)

Series

Pro RC

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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Observatories

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

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yes

Advanced

Telescopes for experienced observers, but also for ambitious beginners.

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Product safety

Manufacturer: Knaeble Optical Systems UG, Rönnestraße 13, 14057 Berlin, DE, http://www.knaeble-eng.com/

Product safety

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