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Askar 203 APO F/7.0 Triplet
Telescopes

Askar 203 APO F/7.0 Triplet

Discover the ultimate capabilities in deep-sky astrophotography and celestial observation with the premium Askar 203APO refractor telescope! With a large 203 mm aperture, a focal length of 1421 mm

Discover the ultimate capabilities in deep-sky astrophotography and celestial observation with the premium Askar 203APO refractor telescope! With a large 203 mm aperture, a focal length of 1421 mm (f/7), and a 20% larger effective area than the 185APO model, it delivers exceptional light-gathering power, reaching a limiting magnitude of 13.3.

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  • Item

    Dioptric

    They use a lens that refracts light and focuses it at the back end.
  • Lens Diameter 203 mm
  • Mount Type Equator
10000 00 €
Delivery Fri, 27 Nov - Thu, 03 Dec
14,00 €   shipping cost
Sent from Greece
From Telescopium Athens
Greece
See Leisure on the page of Telescopium Athens

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Description & Specifications

Discover the ultimate capabilities in deep-sky astrophotography and celestial observation with the premium Askar 203APO refractor telescope! With a large 203 mm aperture, a focal length of 1421 mm (f/7), and a 20% larger effective area than the 185APO model, it delivers exceptional light-gathering power, reaching a limiting magnitude of 13.3. It features a triplet apochromatic design (Triplet APO) with an ED (Extra-low Dispersion) glass element for complete correction of chromatic aberrations and crystal-clear color fidelity. Designed with portability in the field in mind, it incorporates a retractable tube (reducing its length to 1145 mm), a CNC-machined 3.5" dual-speed Rack & Pinion focuser with 100 mm of travel, a 360° rotator, a 500 mm Losmandy plate, and a durable aluminum case.


Top-Tier Image Capture, Optical Precision & Outstanding Astrophotography Performance!

The Askar 203APO is an impressive optical tube assembly (OTA), designed primarily as a high-end astrograph for deep-sky astrophotography while also offering an outstanding visual observing experience. Its large 203 mm aperture captures exceptionally detailed, bright and rich images of distant galaxies, nebulae and star clusters.

Why Choose It

  • Triple-Element APO Optical Design with ED Glass: Fully eliminates chromatic aberration for maximum sharpness

  • Large 203 mm Aperture (f/7): High resolution, contrast & light gathering (Limiting Magnitude 13.3)

  • Retractable Tube Design: Reduces the length to 1145 mm for easier transport & use with binoculars/diagonal

  • 3.5" Dual-Speed CNC Focuser: Rack & pinion with 100 mm travel, matte black interior finish & compatibility with a focus motor

  • 360° Rotator & Dual Finder Bases: Easy camera orientation & accessory mounting

  • Complete Mounting Set: Reinforced triple-section rings, 402 mm extension handle & 500 mm Losmandy plate

  • Premium Construction & Case: CNC-machined ivory-colored body with orange accents & aluminum case

Advanced Mechanical & Optical Design

  • Triple ED Apochromatic System: The extra-low-dispersion (ED) glass element minimizes chromatic dispersion and color fringing, delivering completely natural color reproduction and high contrast.

  • Innovative Retractable Tube: The rear tube retracts and extends while maintaining the optical axis thanks to a steering-wheel-style locking ring. When extended, it connects to a diagonal and eyepiece for conventional viewing; when retracted, it allows use with binocular viewing systems (bino-viewers).

  • Professional 3.5" Focuser: Precision CNC-machined, it features an internal anti-reflection design and a measurement scale. The 360° rotator at the rear lets you set and maintain the imaging angle, even with heavy astronomical cameras.

Specifications

  • Product Type: Refractor Telescope / Astrograph (OTA - Optical Tube Assembly)

  • Optical Design: Air-spaced triplet APO with 1x ED glass

  • Aperture: 203 mm

  • Focal Length: 1421 mm

  • Focal Ratio: f/7

  • Limiting Magnitude: 13.3

  • Tube Length: 1145 mm (with the dew shield retracted and the tube collapsed)

  • Weight: OTA net weight: 14.9 kg | Total weight with accessories: 23.5 kg

  • Focuser: 3.5" dual-speed rack-and-pinion (100 mm travel, CNC-machined)

  • Rotator: 360° rotator with precision scales

  • Mounting Plate: 500 mm Losmandy dovetail

  • Handle: 402 mm long with grooves for mounting a finder

  • Rear Interface Adapters: 2" and 1.25"

  • Exterior Finish: CNC anodizing and spray painting (ivory with orange accents)

Package Contents

  • 1 × Askar 203APO Optical Tube Assembly (OTA)

  • 1 × Set of Reinforced Tube Rings

  • 1 × Extended Carry Handle (402 mm)

  • 1 × Askar 500 mm Losmandy Dovetail Plate

  • 1 × Durable Aluminum Case

  • 1 × User Manual

Manufacturer

Manufacturer Details

Warnings & Safety Information

Dimensions

Type
Dioptric

Type

Dioptric

They use a lens that refracts light and focuses it at the back end.
Lens Diameter
203 mm
Focal Length
-

Focal Length

It is the distance that light rays need to travel to reach the focal point, that is, the sensor of the lens.

The shorter the focal length, the wider the angle of view for the photograph, and therefore, the more of what is in front of us the lens can capture.
Mount Type
Equator

User Level

Beginner
No
Familiar
No
Experienced
Yes

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

10.000,00 €
14,00 €   shipping cost