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Telescopes > ASA > Cassegrain Focus > ASA Cassegrain telescope C 400/3600
Product no.: 46859

Cassegrain telescope C 400/3600

$ 37,400.00 incl. VAT plus shipping costs
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Product description

The ideal telescope for stationary use in observatories: High-quality LOMO optics, relatively light carbon lattice tube with high rigidity, very well suited for remote operation!

Cassegrain and Ritchey-Chrétien (RC) telescopes are used by professional observatories and research institutions. The well-known physicist and optical designer Dipl.Phys. Philipp Keller calculates these top-class ASA telescope systems. The tubes are designed as a lattice construction with CFRP tubes, and the precision optics come exclusively from LOMO. In combination with a reducer or image field flattener (designed by Phillipp Keller), these instruments can also display stars as points even with large CCD sensors.

The finest equipment: Zero Expansion AstroSitall optics from LOMO

LOMO is a manufacturer of precision optics and supplies optics for professional telescopes up to two metres in diameter. If you are looking for perfect imaging properties and don't want to waste precious clear nights with inferior optics, you have come to the right place.

  • System wavefront accuracy at least L/8 peak to valley at 632 nm in focus
  • System wavefront accuracy at least L/35 RMS at 632 nm in focus
  • Surface quality 80/50 scratch/dig
  • Coating made of aluminium and quartz (AlSiO2)

We supply a test certificate and interferogram with every optical element. To ensure that the optical elements maintain their optimum correction even during the cooling phase, we offer them in glass-ceramic such as AstroSitall as mirror substrates.

Optical performance that always pushes the seeing limit

Both Ritchey-Chrétien and Cassegrain telescopes require a corrector for use with large-format CCD cameras (see "Recommended accessories"). In a performance comparison, a corrected Cassegrain is very similar to the Ritchey-Chrétien system, but is priced below the Ritchey-Chrétien system. The advantage of the Ritchey-Chrétien is that the minor image errors are easier to correct.

The high precision of these telescope systems is achieved through the special rigidity that ASA achieves through computer-aided design, in-house CNC manufacturing and high-quality materials.

Included in delivery:

  • Secondary mirror focusing including software
  • Mirror cover including power pack and software
  • USB cable

The telescope is individually and carefully packaged for transport.

Contact our customer service: Our observatories team will advise you on choosing the right telescope and mount, and will even help you set it up.

Similar picture: Delivery without camera

Specifications

Optics


Aperture (mm)
400
Type of build
Cassegrain
Focal length (mm)
3600
Aperture ratio (f/)
9
Resolving capacity
0,29
Limit value (mag)
14,8
Light gathering capacity
3270
Max. useful magnification
800
Tube material
Carbon
Coating
Aluminium and silicon dioxide

Reflector


Primary mirror - Material
AstroSitall
Ventilation for central mirror
yes
reflectivity
91

General


Series
Cassegrain Focus
Total weight (kg)
69

Area of application


Astrophotography
yes

Recommended for


Beginners
no
Advanced
no

Product safety

Manufacturer: ASA Astrosysteme GmbH, Galgenau 19, 4212 Neumarkt i. M. , AT, www.astrosysteme.at

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*All prices include VAT plus shipping costs.

ASA Cassegrain telescope C 400/3600
ASA Cassegrain telescope C 400/3600
ASA Cassegrain telescope C 400/3600
ASA Cassegrain telescope C 400/3600

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