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Astronomy > Telescopes > GSO > GSO Telescope N 305/1200 Carbon OTA
Product no.: 52973

Telescope N 305/1200 Carbon OTA

$ 1,800.00 incl. VAT, plus shipping costs
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Product description

This Newtonian telescope is relatively lightweight despite its large aperture of 12" (305 millimetres). It is ideally suited to astrophotography: A fast aperture ratio of f/4, ultra-thin secondary mirror supports for fine diffraction spikes and a focuser with an advantageous focal position: You will have no problems finding your focus with any of the current DSLR or astrophotography cameras. Illuminated image field: 23mm up to 100%; 35mm up to 90%. This is perfect for SLR cameras with APS-C sensors!

To help you focus during visual observations, an extension sleeve is included. You can use this with 2” eyepieces or, thanks to the included reducer, 1.25” eyepieces.

The generously sized finderscope helps you to easily centre celestial objects when the camera is attached.

The focuser with its ring clamp also holds heavy equipment, which can be brought easily into focus using the fine drive.

The advantages of the carbon-fibre OTA, which you get with this model, are the slightly lower weight and no change in tube length even with extreme temperature variations.

Carbon tube: Made in Germany!

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)
305
Focal length (mm)
1200
Aperture ratio (f/)
3,9
Resolving capacity
0,38
Limit value (mag)
14,2
Light gathering capacity
1900
Max. useful magnification
610
Tube weight (kg)
20
Tube material
Carbon
Tube length (mm)
1150
tube diameter (mm)
356
Tube construction
Full tube

Reflector


Adjustable
yes
Primary mirror - Material
BK7
Ventilation for central mirror
yes
Secondary mirror diameter (mm)
88

Focuser


Type of build
Monorail
Gear reduction
1:10 fine focusing
Free aperture (mm)
50,8
Connection ( to eyepiece)
2
Backfocus (mm)
65
Load capacity (kg)
4
Motorized
no
Rotating
no

Mount


Type of build
OTA
Mounting type
no mount
GoTo control
no

Included accessories


Eyepiece adaptor
1,25" - 2"
Tube clamps
yes
Finder scope
8x50
Extension tubes
yes

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
yes

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*All prices include VAT plus shipping costs.

GSO Telescope N 305/1200 Carbon OTA
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