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Telescopes > Celestron > OTA > Celestron Schmidt-Cassegrain telescope SC 235/2350 C925 OTA
Product no.: 7939

Schmidt-Cassegrain telescope SC 235/2350 C925 OTA

$ 2,250.00 incl. VAT, plus shipping costs
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Product description

More about the series OTA...

The Schmidt-Cassegrain optics by Celestron:

Despite the long focal length of these telescopes, the OTA itself has a very short length, making the system a compact telescope which is extremely easy to transport. Light first hits an aspherically figured Schmidt corrector plate and is then thrown onto a spherical main mirror. This reflects the light back up, throwing it onto a secondary mirror which subsequently throws it back in the direction of main mirror. The light then passes through a central hole in the main mirror and into the focuser at the bottom of the OTA. Thus the system is closed and hence does not suffer from air turbulence which could degrade the image. Of course this also means that the system is optimally protected from dust. The Schmidt plate is multi-coated, ensuring bright images which do not suffer from stray light reflections.

This telescope provides a very good image, boasting high contrast and definition and provides a lot of pleasure when planetary observing. The Schmidt-Cassegrain design provides a good all-round system suitable for both observing and astrophotography and with an enormous range of optional accessories available. Using the bottom end of the OTA to look through means easy orientation. The system is also optimal for occasional terrestrial observing, e.g. birdwatching at close range. Celestron SC telescopes have an aperture ratio of around 1:10 which, so astrophotography is also very easily possible.

Main mirror focusing means a very large range of focus is made available, which allows virtually any common accessory to be used. Two pre-loaded ball bearings are used in the main mirror focus positioning mechanism in order to prevent 'mirror shift' - a typical problem when using simple bushings. The use of high quality materials such as CNC-milled aluminium components, cast steel and stainless steel guarantees extreme robustness with low weight. This means that a very heavy mount is unnecessary, not always the case for other telescope designs.

Features of the optics:

  • long focal length with short OTA
  • low weight aluminium OTA
  • high quality XLT multi-coating
  • closed system
  • pre-loaded ball bearings for low mirror shift main mirror focusing

Included in delivery with the telescope:

  • OTA with 235mm aperture and 2350mm focal length
  • 25mm Ploessl eyepiece
  • 1.25" star diagonal
  • mounting rail
  • 6x30 finder scope, straight-view

It not only matters which telescope you buy but also where you buy it. Our additional services:

  • We are a leading telescope dealer and know the devices we sell. Our customer service team will gladly help you after your purchase if you have problems with assembly or operation.
  • We provide a copy of the 80-page Telescope ABC beginners handbook with every telescope.
  • We also provide an edition of the exciting astronomy magazine, “Sterne und Weltraum” with each telescope.

Our expert comment:

Celestron supplies OTAs either with the wider 3" mounting rail (Losmandy style) or the narrower AS-GT rail (Vixen-style). The rail used with the respective product can be identified by the product picture or in 'Specifications' in the 'Included Accessories' section.

Stefan Taube

Specifications

Optics


Type
Reflector
Type of build
Schmidt-Cassegrain
Aperture (mm)
235
Focal length (mm)
2350
Aperture ratio (f/)
10
Resolving capacity
0,49
Limit value (mag)
13,7
Light gathering capacity
1130
Max. useful magnification
470
Tube length (mm)
559
Coating
Starbright XLT
Tube weight (kg)
9,4
Tube construction
Full tube

Reflector


Secondary mirror obstruction
36
Secondary mirror diameter (mm)
85,1

Focuser


Type of build
SC thread
Connection ( to eyepiece)
2

Mount


Mounting type
no mount
GoTo control
no
Type of build
OTA

Included accessories


1.25'' eyepieces
PL 20mm
Finder scope
6x30
Software
TheSky
Deviating optics
1.25", 90° star diagonal
Prism rail
Losmandy-Style

General


Total weight (kg)
9,1
Series
OTA
Special recommendation
yes

Area of application


Moon & Planets
yes
Nebulae & galaxies
yes
Nature Observation
yes
Astrophotography
yes
Sun
not recommended (Only with appropriate Sun filter)

Recommended for


Beginners
no
Advanced
yes
Observatories
yes

Recommended accessories

Workshop service (1)

Astroshop Adjustment & auto-collimation star test Schmidt Cassegrain 4"-11"

$ 102.00*
Telescope accessories > Prisms & Diagonal mirrors (4)
Amici prism

Omegon 1,25'' Amici Prism 90°

$ 169.00*
Telescope accessories > Adaptors (3)

Baader 2'' ClickLock SC clamp

$ 95.00*
Telescope accessories > Transport & storage (10)
Carry case

Geoptik Carry case Transportation bag for Schmidt Cassegrain tubes/optics (9 '' to 11 '')

$ 160.00*
Telescope accessories > Dew shields & Ventilation (4)
Soft dew shield cap

Astrozap Soft dew shield cap Celestron SC925 mit zwei Aussparungen

$ 170.00*
Telescope accessories > Other (9)

PegasusAstro Focusing Motor FocusCube v2 for SC Telescopes (C6, C8, C9.25)

$ 395.00*
Eyepieces (3)
Eyepiece

Omegon LE Series Eyepiece, 14.5mm, 1.25''

$ 149.00*
Eyepieces (4)
Eyepiece

Omegon SWA 38mm eyepiece, 2”

$ 179.00*
Eyepieces (4)
Eyepiece

Omegon Ultra Wide Angle eyepiece 9mm 1,25"

$ 69.00*
Eyepieces > Other (5)
Reticle eyepieces

Omegon Reticle eyepieces Illuminated crosshair eyepiece, 12.5mm

$ 89.00*
Filters > Moon filters & Polarizing filters (4)
Filters

Omegon Filters Variable grey filter 1.25"

$ 34.90*
Filters > Nebulae filters (8)
Filters

Omegon Filters Nebula/ city light filter 1.25 ''

$ 39.90*
Filters > Other (1)

Omegon 2'' filter wheel

$ 189.00*
Astrophotography > Camera adaptor (3)

Starizona Hyperstar Celestron 9.25 v4

$ 2,030.00*
Astrophotography > Camera mounts (4)

Omegon Easypic Universal Smartphone Adapter

$ 129.00*
Astrophotography > Other (4)
Camera

ZWO Camera ASI 178 MC Color

$ 391.00*
Mountings & accessories (1)

Losmandy dovetail plate for Celestron 9.25"

$ 320.00*
Observatories (1)

Omegon Tent observatory

$ 189.00*
Media (2)
Star chart

Omegon Star chart Planisphere

$ 14.90*
Outdoor > Lamps (3)
Headlamp

Omegon LED headlamp

$ 13.90*
Globes & Maps (1)
Continental map

Oculum Verlag Sky Quality Map Europe

$ 18.90*
Solar Observation (2)
Solar Filters

Baader AstroSolar telescope solar filter ASTF 240mm

$ 179.00*
Maintenance & Cleaning > Lens cleaners (3)

Omegon 7-in-1 lens cleaning set

$ 19.90*
Maintenance & Cleaning > Other (2)

Omegon microfibre cleaning cloth 20cm x 20cm

$ 4.90*

*All prices include VAT plus shipping costs.

Celestron Schmidt-Cassegrain telescope SC 235/2350 C925 OTA
Celestron Schmidt-Cassegrain telescope SC 235/2350 C925 OTA

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