Manufacturer: Skywatcher
Product number: BKM180OTA

EUR 1.415,00


incl. 19 % VAT (DE)  
The VAT indicated refers to that applicable in Germany. After logging in, the VAT amount is adjusted to the applicable VAT of the stored delivery country. Therefore, the final price may vary accordingly.
excl. 9.95 € shipping costs (DE)  
Please log in to calculate shipping costs to your country.
more details to the shipping costs ...

  • Item has delivery time
  • Please notify by email when available again.

  • I agree to my email address being saved.  




Product expected to be available from 01.06.2024

Pre Order:



rating: 4.5 of 5
  • Details..
  • Technical data..
  • In the box..
  • Reviews..
Skywatcher Skymax-180 Maksutov-Cassegrain Telescope - optical tube assembly
The Black Line Maksutov 180/2700 mm is the biggest model of the Skywatcher Maksutov range. High resolution, no spikes - with this system, the manufacturer has designed a specialist for lunar / planetary observation and -photography, but also for weaker deep-sky objects.

With its focal length of 2700 mm, this system is ideal for lunar and planetary observation. Even eyepieces with longer focal lengths (and therefore often more comfortable viewing position) lead to relatively high magnification.

A wider field with 2"
Especially for deep-sky observation, 2" eyepieces are very useful, especially with this focal length. With a TSWA38, you have a wider field of approximately 1°, making this telescope also useful for nebulae and galaxies. This telescopes comes with a 2" eyepiece receptacle.

Photography
The BKM 180 is the right instrument for the enthusiastic planetary photographer. Together with our web cam and a 2.5x Barlow lens, this telescope is ideal for lunar and planetary imaging, only limited by physical laws.

Useful information by Teleskop-Service: The Maksutov-Cassegrain System


A Maksutov-Cassegrain combines compact design with an image quality that´s close to a classical refractor. Compared with fast refractors of the same aperture, the quality is even better because a Maksutov-Cassegrain has no disturbing false colour.

Thus the Maksutov-Cassegrain is an interesting alternative for astronomers who pay pay attention on high-contrast imaging but need a compact system.



On the other hand, a Maksutov-Cassegrain is not a very "fast" system. Compared with the aperture, the focal length is relatively long. This is ideal for lunar and planetary observation, but wide field objects like the Pleiades or the Andromeda Galaxy cannot be viewed in their full dimension.

The optical design (see picture above):
Light passes through the meniscus corrector, is reflected by the spherical main mirror and is then directed by the spherical secondary mirror to the focal plane. The abberations of the spherical main mirror are corrected by the Maksutov lens. This causes a good quality either on the optical axis and also off-axis. A further advantage: The Maksutov corrector keeps the OTA closed and makes it less sensitive against tube seeing caused by temperature differences.

The secondary mirror transforms the main mirror´s focal ratio to the full value of f/10 to f/15 (depending on the individual design).

Focusing:
The image is not focused by an external drawtube but by moving the main mirror by a fine thread. This kind of focusing hat the advantage of a very wide focus range - nearly any accessories can be mounted.

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin
Aperture:180 mm / Focal length 2700 mm
Focal ratio:f/15
Limiting visual magnitude:13m8
Resolution:0.64"
OTA length:58 cm (with eyepiece connector)
OTA diameter:21.6 cm
OTA weight:7.8 kg
Focusing:trouble-free internal focusing without annoying shifting
Connection to mount:photo tripod connection and GP level dovetail bar (fits HEQ5, EQ5, ...)
Eyepiece side connection:2" and 1.25"
Thread on the backside of the tube:2" SC thread
Baffle tube:30 mm clear aperture
Maksutov-Cassegrain with 2" connection
Vixen GP level dovetail bar with female 1/4" photo thread attached permanently to the tube
9x50 finder (straight view) with bracket
2" star diagonal with reduction to 1.25"
Eyepieces LET20 (20 mm) and LET9 (9 mm)

Astrophotographic results obtained with this telescope on Astrobin
Here you can find some astrophotographs made with this telescope model: Link to Astrobin


Recommended accessories




Accessories for mounts

Adaptors

TSFA2

TS-Optics Focal Adapter from 2 Inch to T2 (M42x0,75)

TS-Optics Focal Adapter from 2 Inch to T2 (M42x0,75)

  • On stock

EUR 29,90RRP EUR 34,90you save 14.3% (EUR 5,00)

%

Barlow, Corrector, Reducer

Books

Cleaning & Collimating

TSMF27

TS-Optics Optical Super Microfiber Cleaning Cloth

TS-Optics Optical Super Microfiber Cleaning Cloth

  • On stock

EUR 5,99RRP EUR 7,95you save 24.7% (EUR 1,96)

%

Customers who bought this product also bought...

Diagonal Mirrors & Prisms

Eyepiece-side accessories like Filters

FXP1

TS-Optics variable Polarising Filter 1,25" for moon and planets

TS-Optics variable Polarising Filter 1,25" for moon and planets

  • On stock

EUR 54,90RRP EUR 59,90you save 8.3% (EUR 5,00)

%
%

Eyepieces

GSWA50

GSO Superview 2" ERFLE 50 mm Rich-Field Eyepiece - 52° Field

GSO Superview 2" ERFLE 50 mm Rich-Field Eyepiece - 52° Field

  • On stock

EUR 89,00RRP EUR 99,00you save 10.1% (EUR 10,00)

%

TSWA38

TS-Optics 38 mm 2" - 70° Wide Angle Eyepiece

TS-Optics 38 mm 2" - 70° Wide Angle Eyepiece

  • On stock

EUR 149,90RRP EUR 169,00you save 11.3% (EUR 19,10)

%

HRZ

TS-Optics Premium Zoom Eyepiece 7.2 mm to 21.5 mm - 1.25"

TS-Optics Premium Zoom Eyepiece 7.2 mm to 21.5 mm - 1.25"

  • On stock

EUR 134,90RRP EUR 159,00you save 15.2% (EUR 24,10)

%

Finder & Accessories

General Accessories

Mounts

Photo Acessories

TSSSI

TS-Optics moon and planetary astro CCD camera with 1,25" connection

TS-Optics moon and planetary astro CCD camera with 1,25" connection

  • On stock

EUR 49,98RRP EUR 89,00you save 43.8% (EUR 39,02)

%

Transport & Covers
%
%

Reviews

Written by Nick Fotis
on 2021-05-23

"Bad things first: - The adapter from 2"" to 1.25"" in the visual back is garbage (only one retaining screw) - The 9mm eyepiece is almost useless as well. Synta could put a much better equivalent length eyepiece instead for 10-20 EUR more - On a HEQ5 mount, when trying to focus manually, the very long distance makes it very susceptible to vibrations from the hand or the floor. Good things: - Sharp and contrasty views (as long as you manage to focus accurately). Tested on land targets 6+ km away during the dawn, very clear views.For accurate focus, you will probably need a focus motor. - Lighter than a C9.25 SCT and less volume. - Finder scope is fine, it takes some effort to collimate with the OTA due to very long focal length (2700mm is no joke) Would like to see a Losmandy dovetail for it, or mounting rings (it has an unusual diameter, approx. 216mm)."

Written by Voronin Alexey
on 2018-08-25

*****

Written by Rémy GRESSLY
on 2016-06-10

"Leichte Defokussierung"