Astronomy Specialist

SHARPSTAR 50EDPH f/5.5 APO TRIPLET

$749.00 AUD
SKU: SS-50EDPH

Sharpstar

Apochromatic triplet

50 mm

f/5.5

275 mm


Flattener

 

The Sharpstar 50EDPH APO is a fast and super portable apochromatic triplet with a focal ratio of f/5.5 and a focal length of 275mm. The objective lens includes two Extra-Low Dispersion elements for excellent colour correction.

 

 

 

This telescope is incredibly light and compact, making it perfect for small equatorial mounts such as the Sky-Watcher Star Adventurer GTI. For imaging, a 0.84x reducer is available (sold separately), resulting in a wide focal length of 230mm and the focal ratio f/4.6. This corrector delivers an corrected image circle up to APS-C

 

 

The rack and pinion focuser can be rotated 360° and has a reduction gear of 1:10 for precise focusing. The focuser is compatible with the ZWO EAF electronic focuser bracket but may require additional hardware.

 

 

The 50EDPH also excels as a richfield visual telescope with the addition of an optional diagonal and eyepiece. The telescope includes a 70mm long Vixen-style dovetail plate which has two 1/4"-20 holes and six M6 holes, making it easy to attach to a variety of mounts and tripods.

 

 

All the lenses are fully multi-coated and the tube is internally blackened to reduce reflections and absorb stray light. The tube is made of aluminium, the rack and pinion focusing mechanism of brass and the mechanical components are engineered to provide the best rigidity, performance and durability.

Note: The mount, camera and accessories shown in the product photos are not included. 

 

 

Optical design

Apochromatic triplet air spaced with 2 x ED lenses

Objective diameter

50 mm

Focal length

275 mm (230 mm with reducer)

Focal ratio

f/5.5 (f/4.6 with reducer)

Resolving power

2.32 arc second

Stellar limiting magnitude

11.9

Max. magnification

125 x

Light gathering power

51 times the human eye

Mount attachment

Vixen bar (70 mm long)

Focuser

Rack & pinion dual speed (10:1)

Camera connection

M48 x 0.75 male, 1.25"

Backfocus

55 mm from reducer (sold separately)

Tube weight

1.0 kg including dovetail

Tube length

196 mm with dew shield contracted

Tube diameter

60 mm

Dew shield diameter

67 mm

SKU

SS-50EDPH

 

 

 

  • SharpStar 50EDPH f/5.5
  • 70mm Vixen-style dovetail
  • Finder saddle
  • Adapter M48 to 1.25"

 

Installing the ZWO EAF onto the 50EDPH

 

 

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SHARPSTAR 50EDPH f/5.5 APO TRIPLET

From $749.00 AUD

Flattener

  • OTA only
  • With 0.84x reducer

Optical design

Apochromatic triplet

Image circle

Focal ratio

f/5.5

Aperture

50 mm

Focal length

275 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

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

Length

Width

Height

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