Telescopes > PlaneWave > PlaneWave Dall–Kirkham telescope DK 318/2541 CDK12.5 Astrograph

Product no.: 71578

Dall–Kirkham telescope DK 318/2541 CDK12.5 Astrograph

Name: PlaneWave Dall–Kirkham telescope DK 318/2541 CDK12.5 Astrograph
Brand: PlaneWave
Price: 17100 USD

$ 17,100.00 incl. VAT, plus shipping costs

too expensive?

short-term
ready for shipping in 1-2 weeks + lead time

add to cart

Product questions?

advice for Telescopes

Product description Specifications Downloads Recommended accessories Customer reviews (0)

Product description

2.75" Hedrick Focuser: Heavy-duty no-slip focuser with 1.3" of drawtube travel when fully racked out. The focus tube runs on 5 bearings and is driven by a leadscrew, so there is no chance of slipping.

Specifications

Optics

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

Click to read more...

Type

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

Click to read more...

Reflector

Type of build

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

Click to read more...

Dall–Kirkham telescope

Aperture (mm)

Aperture

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

Click to read more...

318

Focal length (mm)

Focal length

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

Click to read more...

2541

Aperture ratio (f/)

Aperture ratio

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

Click to read more...

Resolving capacity

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

Click to read more...

0,43

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.

Click to read more...

14,3

Light gathering capacity

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

Click to read more...

2060

Max. useful magnification

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

Click to read more...

636

Tube weight (kg)

Tube weight

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

Click to read more...

Tube length (mm)

Tube length

Including eyepiece, but excluding dew cap.

Click to read more...

787

Tube material

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

Click to read more...

Carbon

Carbon is especially light and stable, but is also more expensive than metal

Click to read more...

Tube construction

Full tube

Fully Corrected Field (mm)

Corrected Field

The optics’ field is illuminated without errors.

Click to read more...

Reflector

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

Click to read more...

Primary mirror - Diameter (mm)

318

Secondary mirror diameter (mm)

118

Secondary mirror obstruction

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

Click to read more...

Ventilation for central mirror

Ventilation for primary mirror

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

Click to read more...

yes

Secondary Mirror Heating

Secondary mirror heating

This heater prevents condensation on a reflecting telescope’s secondary mirror.

Click to read more...

yes

Primary mirror - Material

Pyrex glass

Secondary mirror material

Pyrex glass

Main mirror´s construction

Main mirror construction

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

Click to read more...

elliptical

secondary mirror design

spherical

reflectivity

aluminising

Aluminium

Focuser

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

Click to read more...

Type of build

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

Click to read more...

Hybrid

Backfocus (mm)

Backfocus

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

Click to read more...

Free aperture (mm)

Motorized

yes

Adjustment range (mm)

Rotating

Undefiniert

Mount

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

Click to read more...

Type of build

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

Click to read more...

OTA

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

Click to read more...

Mounting type

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

Click to read more...

no mount

Included accessories

Many telescopes came with simple accessories.

Click to read more...

Corrector

Optical aid to correct aberrations.

Click to read more...

integrated

Prism rail

Losmandy-Style

Tube clamps

yes

Area of application

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

Click to read more...

Astrophotography

yes (very good)

Moon & Planets

yes

Nature Observation

Nebulae & galaxies

yes

Sun

Telescopes for safe solar observing.

Click to read more...

Recommended for

Recommended for...

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

Click to read more...

Beginners

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

Click to read more...

Advanced

Telescopes for experienced observers, but also for ambitious beginners.

Click to read more...

Observatories

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

Click to read more...

yes

show less...

Downloads

Dimensions

Booklet (EN)

Data sheet (EN)

Recommended accessories

Telescope accessories > Transport & storage (4)

Omegon aluminium case, large

$ 89.00*

Omegon Carry case Bumbag for eyepieces

$ 59.00*

Omegon Transport cases eyepiece case

$ 99.00*

Omegon Carry case transport bag for accessories

$ 79.00*

+ Show more accessories in this category: 3

- Show less accessories in this category

Telescope accessories > Other (7)

PlaneWave EFA Electronic Focusing Accessory CDK12.5

$ 1,340.00*

PlaneWave Focuser Hedrick 3.5" CDK 14/17/20/24

$ 1,670.00*

noctutec Dark adaptation glasses for astronomers

$ 25.90*

Omegon Off-Axis-Guider Advanced T2

$ 139.00*

Omegon 1,25'' Amici Prism 90°

$ 169.00*

Omegon 45°, 1.25'' to 1.25'' Amici prism

$ 99.00*

Omegon Filters OIII filter 1.25''

$ 89.00*

+ Show more accessories in this category: 6

- Show less accessories in this category

Eyepieces (3)

Omegon Ultra Wide Angle eyepiece 9mm 1,25"

$ 69.00*

Omegon Ultra Wide Angle eyepiece 15mm 1,25"

$ 69.00*

Omegon Ultra Wide Angle eyepiece 20mm 1,25"

$ 69.00*

+ Show more accessories in this category: 2

- Show less accessories in this category

Filters > Nebulae filters (4)

Omegon Filters 1.25'' deep sky filter

$ 89.00*

Omegon Filters 1.25'' Clear Sky filter

$ 129.00*

Omegon Filters UHC Filter, 1.25“

$ 69.00*

Omegon Filters Nebula/ city light filter 1.25 ''

$ 39.90*

+ Show more accessories in this category: 3

- Show less accessories in this category

Astrophotography > Camera adaptor (3)

Omegon Camera adapter 1.25"

$ 24.90*

Omegon Camera adaptor T2-Ring compatible with Canon EOS

$ 19.90*

Omegon Camera adaptor T2-Ring für Nikon

$ 19.90*

+ Show more accessories in this category: 2

- Show less accessories in this category

Astrophotography > Other (3)

Omegon Easypic Universal Smartphone Adapter

$ 129.00*

Lacerta Camera Standalone Autoguider MGEN Version 3

$ 1,000.00*

Omegon Guidescope module finder

$ 99.00*

+ Show more accessories in this category: 2

- Show less accessories in this category

Observatories (1)

Omegon Tent observatory

$ 189.00*

Media (2)

Omegon Star chart Planisphere

$ 14.90*

Springer Astrophotography is Easy!

$ 25.90*

+ Show more accessories in this category: 1

- Show less accessories in this category

Outdoor > Lamps (3)

Omegon LED headlamp

$ 13.90*

Omegon Astronomy torch Twin Light with brightness control

$ 13.90*

Omegon Astronomy torch Astro-Flashlight

$ 14.90*

+ Show more accessories in this category: 2

- Show less accessories in this category

Astronomy (4)

Omegon Radiant Finder with fastener

$ 49.90*

Omegon Reticle eyepieces Illuminated crosshair eyepiece, 12.5mm

$ 89.00*

Omegon Filters Variable grey filter 1.25"

$ 34.90*

Omegon Filters Moon filter 1.25"

$ 19.90*

+ Show more accessories in this category: 3

- Show less accessories in this category

Globes & Maps (1)

Oculum Verlag Sky Quality Map Europe

$ 18.90*

Maintenance & Cleaning > Lens cleaners (3)

Omegon 7-in-1 lens cleaning set

$ 19.90*

Omegon cleaning system

$ 4.90*

Baader Lens Cleaning Pump Spray Optical Wonder 100ml

$ 15.90*

+ Show more accessories in this category: 2

- Show less accessories in this category

Maintenance & Cleaning > Other (2)

Omegon microfibre cleaning cloth 20cm x 20cm

$ 4.90*

Omegon SPUDZ microfaser cleaning cloth

$ 14.90*

+ Show more accessories in this category: 1

- Show less accessories in this category

*All prices include VAT plus shipping costs.

show less...

Fully Corrected Field

Example image 1

Example image 2

Customer reviews

There are no customer reviews for this product yet.

Compose your own review

Do you have specific questions about your order or products? Please contact our customer service!

Add your review now