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Astronomy > Telescopes > TS Optics > TS Optics Telescope N 250/1250 Carbon OTA
Product no.: 85347

Telescope N 250/1250 Carbon OTA

$ 2,510.00 incl. VAT plus shipping costs
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  • 10" primary mirror: Lots of light, high resolution
  • Carbon fibre tube for low weight
  • High-quality 2" focuser with reduction gear

Product description

The 10" f/5 UNC Newtonian is a universal telescope for portable and stationary use. When observing the Moon and planets, only the atmosphere limits the resolution of the telescope. However, the Newtonian is also bright enough to successfully photograph nebulae and galaxies.

  • High-quality carbon tube manufactured in Deutschland with maximum stability - individually manufactured
  • Easy collimation of main and secondary mirrors - by hand, without tools
  • The side edge of the secondary mirror is blackened.
  • The secondary mirror is attached to the secondary mirror mount with the correct offset
  • 94% reflection on the primary mirror and secondary mirror for a brighter image
  • Diffraction-limited primary mirror - each telescope is tested on our optical bench before shipping

Carbon lens tube: The classic black carbon lens tube saves weight. This not only makes transportation easier but also takes load off the mount. At the same time, the thermal expansion coefficient of carbon fibre is considerably smaller than that of aluminium or steel. This makes the telescope's focus much more stable when is comes to changes in temperature.

Berger anti-reflective paint for the best possible internal blackening: Berger anti-reflective paint is used on this Newtonian telescope. It darkens the interior of the tube just as well as velour film. The big advantage, apart from its lower weight, is that the paint hardly attracts dust. The optics remain clean. With velour film, dust accumulates very quickly on the primary mirror.

For mounting on a prism rail: Flat mounting surface with an M6 thread on each tube clamp

UNCN2-G2 2" focuser: The focuser protrudes only 58 mm from the edge of the tube and can still support heavy cameras and accessories without tilting. The focuser is superior to conventional Crayford focusers.

  • High rigidity with extremely short overall length
  • Precise 1:10 reduction ratio - for perfectly focused astrophotography
  • The adjustment is decoupled from the ball bearing – a clear advantage over Crayford focusers
  • Can be expanded with motor focus – with the TS motor focus advantage: manual adjustment possible with attached focuser
  • The ball bearings are adjustable, allowing the focuser tube to be perfectly adjusted – however, we deliver the focuser already optimally adjusted.
  • Accessories can be screwed on – the 2" plug-in sleeve can be unscrewed, leaving you with an M54x0.75 internal thread.

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.

TS Optics is a brand of Teleskop-Service.

Specifications

Optics


Type
Reflector
Type of build
Newton
Aperture (mm)
250
Focal length (mm)
1250
Aperture ratio (f/)
5
Resolving capacity
0,55
Limit value (mag)
13,8
Light gathering capacity
1280
Max. useful magnification
500
Tube weight (kg)
12
Tube material
Carbon

Reflector


Main mirror´s construction
parabolic
secondary mirror design
Plan
Primary mirror - Material
Quartz
Ventilation for central mirror
yes
Adjustable
yes
reflectivity
94
Secondary mirror diameter (mm)
70

Focuser


Type of build
Hybrid
Connection ( to eyepiece)
2
Connecting threaded socket (camera-side)
M54x0,75
Motorized
no
Ring clamp
yes
Load capacity (kg)
5
Gear reduction
yes
Adjustment range (mm)
22
Tilting Adaptor
no
Rotating
no

Mount


Type of build
OTA
Mounting type
no mount

Included accessories


Finder scope
8x50
Prism rail
without
finder base
Vixen/Skywatcher Level
Eyepiece adaptor
2" / 1.25"
Tube clamps
yes

Area of application


Astrophotography
yes
Moon & Planets
yes
Nature Observation
no
Nebulae & galaxies
yes
Sun
no (Only with appropriate Sun filter)

Recommended for


Beginners
no
Advanced
yes
Observatories
yes

Product safety

Manufacturer: Teleskop-Service Ransburg GmbH, Von-Myra-Straße 8, 85599 Parsdorf, DE, www.teleskop-express.de

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*All prices include VAT plus shipping costs.

TS Optics Telescope N 250/1250 Carbon OTA

Main mirror ventilation

TS Optics Telescope N 250/1250 Carbon OTA
Drawtube
TS Optics Telescope N 250/1250 Carbon OTA
finderscope

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