Astronomy Specialist

GEOPTIK 16" NADIRUS DOBSONIAN COMPLETE

$5,499.00 AUD
SKU: 10A204

Geoptik

Dobsonian

Dobsonian

402 mm

f/4.5

1800 mm

43.6 kg



Note: This kit includes both primary and secondary mirrors, focuser and Telrad reflex finder.

 

The Geoptik Nadirus 16" complete kit is a high quality Italian-designed and manufactured Dobsonian telescope made from lamellar beech and birch, resulting in a lightweight and stable structure. The entire structure is coated for outdoor use.

The complete kit includes a 16" f/4.5 GSO parabolic primary mirror and 88mm GSO elliptical secondary mirror. The mirrors are made from BK-7 glass with highly reflective aluminium coating and a protective coating of silicon oxide. GSO guarantees diffraction limited performance with a typical surface quality of 1/16 wave or better.

Also included in the complete kit is a high quality 2" low profile rack & pinion focuser with 11:1 fine focus control and integrated drawtube extension, plus the Telrad reflex finder scope.

Note: the mirrors are not pre-installed. For attaching the secondary mirror, we recommend using Sikaflex 252 sealantThe kit does not include the primary mirror fan.

The upper tube housing is made of birch plywood giving unique strength and stability to the secondary mirror spider. The primary mirror cell is made of birch plywood with a support system where the 9-point floating mirror rests on discs of natural cork foam. Teflon strips on both altitude and azimuth make for incredibly smooth operation.

Every part of the telescope has been designed and engineered taking into account a variety of technical and practical aspects. The Italian style, quality of materials and engineering considerations makes it absolutely unique and one of the best Dobsonian kits on the market.

 

Note: As the Nadirus is a handmade object using real wood (not cheap chipboard), there may be inconsistencies in the finish, colour and grain pattern of the wooden parts. Consequently, such minor imperfections are normal and will not affect the longevity or function of the telescope.

 

Type Truss tube Dobsonian
Optical design
Newtonian
Clear aperture
402 mm (16")
Focal length
1800 mm
Focal ratio
f/4.5
Mount type
Dobsonian
Primary cell
Floating 9-point machined aluminium
Secondary holder High precision aluminium assembly
Alignment Manual
Altitude bearing radius
540 mm
Eyepiece height (at zenith) 1720 mm
Total assembled weight 43.6 kg
SKU 10A204 (complete kit)

 

 

  • Rocker box
  • Circular base plate
  • Mirror box
  • Primary mirror cell
  • Altitude bearing x 2
  • Knobs for altitude bearing x 4
  • 20mm trusses x 8
  • Bolts & washers for tubes x 4 + 4
  • Bag for tubes
  • Secondary cage
  • Secondary mirror holder & spider
  • GSO 16" f/4.5 parabolic primary mirror
  • GSO 88mm elliptical secondary mirror
  • 2" rack & pinion focuser
  • Telrad reflex finder with mounting base

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
GEOPTIK 16" NADIRUS DOBSONIAN COMPLETE.

GEOPTIK 16" NADIRUS DOBSONIAN COMPLETE

$5,499.00 AUD

Optical design

Dobsonian

Image circle

Focal ratio

f/4.5

Aperture

402 mm

Focal length

1800 mm

Optical thickness

Threads

Cooled

Colour or Mono

Pixel size

Sensor dimensions

Resolution

Sensor diagonal

Quantum efficiency

Read noise

Fullwell capacity

Bit depth

FPS

Camera backfocus

Filter size

Filter size

Bandpass (FWHM)

Bandpass (FWHM)

Glass thickness

Mount type

Dobsonian

Payload capacity

Latitude range

Dovetail saddle

Slew speed

Encoders

Periodic error correction

Counterweight shaft

Azimuth adjustment range

Internal diameter

Illuminated diameter

Compatible telescope external diameter

Weight

43.6 kg

Length

Width

Height

View product