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Astronomy > Telescopes > TS Optics > Photon > TS Optics Telescope N 254/1016 Carbon Photon OTA
Product no.: 59223

Telescope N 254/1016 Carbon Photon OTA

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Product description

More about the series Photon...

With its very fast aperture ratio, the N 254/1016 optics are ideal for astrophotography. The focus position and the large secondary mirror ensure an illuminated image field of 25 millimetres – ideal for DSLR cameras in APS-C format.

With the extension tube included in the scope of delivery and the large aperture, this Newtonian telescope can also be used very well for purely visual observation of faint objects: This Newtonian is a universal instrument!

The fast aperture ratio is not only beneficial for photography, but the tube is also unusually short for a ten-inch telescope. This has a positive effect on stability on the mount and makes transport easier.

The primary mirror can be cooled by a fan before observation. This allows for faster temperature equalisation, so you can start observing or photographing immediately after setting up and aligning the telescope.

Of course, the high-quality parabolic primary mirror is adjustable. This also applies to the secondary mirror, which is mounted in an adjustable 0.5 mm thick stainless steel spider. A vapour-deposited layer of quartz protects the mirrors while maintaining high transmission through the protective layer.

The telescope is equipped with a Monorail focuser: This focuser is a further development of the proven Crayford focuser:

  • Instead of small ball bearings, a solid stainless steel rail is used, which is fixed on the side
  • more precise guidance of the inner tube and no more tilting when clamping

Of course, the Monorail focuser also has a reduction gear, which is particularly important for astrophotography. A motor can be retrofitted.

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.

Carbon Fibre Tube

This apochromat is well suitable to visual observing but was, in fact, developed especially for astrophotography. Use the advantages of a carbon fibre tube: it is particularly light and so even perfectly suitable for using on smaller mounts. The tube also offers a very high inherent stability and only minimal thermal expansion. These advantages are particularly useful for astrophotography, as the focus remains stable for the whole night. The dew shield is also carbon fibre and can be extended easily. In addition, the tube is lined with black felt.

Carbon tube: Made in Germany!

TS Optics is a brand of Teleskop-Service.

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.

Specifications

Optics


Type
Reflector
Type of build
Newton
Aperture (mm)
254
Focal length (mm)
1016
Aperture ratio (f/)
4
Resolving capacity
0,54
Limit value (mag)
13,8
Light gathering capacity
1320
Max. useful magnification
508
Tube weight (kg)
13
tube diameter (mm)
303
Tube length (mm)
980
Tube material
Carbon
Tube construction
Full tube
field (mm)
25

Reflector


Main mirror´s construction
parabolic
Ventilation for central mirror
yes
reflectivity
94
Adjustable
yes
Primary mirror - Material
BK7
Secondary mirror diameter (mm)
88
protective layer
Quartz
aluminising
Aluminium

Focuser


Type of build
Monorail
Connection ( to eyepiece)
2
Backfocus (mm)
65
Motorized
no
Ring clamp
yes
Gear reduction
1:10 fine focusing

Mount


Mounting type
no mount
GoTo control
no
Type of build
OTA

Included accessories


Finder scope
8x50
Prism rail
Vixen-Style
Tube clamps
yes
Extension tubes
yes
Battery compartment
yes
Eyepiece adaptor
2" / 1.25"

General


Series
Photon

Area of application


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

Recommended for


Beginners
no
Advanced
yes
Observatories
no

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 254/1016 Carbon Photon OTA
Ventilation for central mirror
TS Optics Telescope N 254/1016 Carbon Photon OTA
Drawtube
TS Optics Telescope N 254/1016 Carbon Photon OTA
The special coating reduces reflections.

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