Astronomy Specialist

BAADER HYPERION 68° EYEPIECE 21mm

$215.20AUD $269.00
SKU: BA2454621

Baader Planetarium

Modular

0.39 kg


 

The Baader Hyperion 68° 21mm Modular eyepiece uses high quality Phantom group-coatings for maximum contrast and zero internal reflections. The Hyperion range of multi-function eyepieces feature a modular design with the ability to change the focal length via extension rings

Both 1.25" and 2" barrels are included, with the 1.25" barrel able to be unscrewed to add fine tuning rings. Because this section contains the first group of lenses, changing the spacing allows you to change the focal length. Each barrel is threaded for connection of all standard 1.25" and 2" filtersThe M43-Video-Photo thread for afocal and classical projection photography, permits optional adaptation of practically any camera with optional accessories.

 

Various focal lengths are possible with the addition of FTR fine tuning rings.

 

Baader Hyperion eyepieces provide a wide 68° apparent field, sharp field stops and excellent ergonomics for comfortable observing. Baader's Phantom Group coating is a 7-layer broadband anti-reflective coating with extremely low residual reflection. Each group of lenses has this coating applied. The coating has been optimized so that they are most effective where the human eye has its greatest sensitivity at night, at around 520nm.

Specifications

 

Focal length
21 mm
Optical design
Modular
Barrel
1.25", 2"
Camera connection M43, SP54
Lens elements / groups
8 / 5
Apparent field of view 68°
Parfocal Yes
Eye relief 20 mm
Field stop 24.9 mm
Field stop displacement to reference plane -22.3 mm
Eyepiece body above reference plane
56 mm
Length of 1.25" barrel 27 mm
Length of 2" barrel 49.3 mm
Diameter 58 mm
Weight 393 g
SKU BA2454621

 

Items included

 

  • Baader Hyperion 21mm eyepiece
  • Dual 1.25" & 2" nosepiece
  • Winged rubber eyecup
  • 1.25" dust cap
  • M48 dust cap
  • M45 dust cap
  • Soft leather bag
BAADER HYPERION 68° EYEPIECE 21mm.

BAADER HYPERION 68° EYEPIECE 21mm

$215.20AUD $269.00

Optical design

Modular

Image circle

Focal ratio

Aperture

Focal length

21 mm

Optical thickness

Threads

M43, SP54, 1.25" barrel, 2" barrel

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

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

0.39 kg

Length

Width

Height

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