More products from the brand :ASKAR

52 Scope guide

CHF 199.00incl. Swiss VAT

Reference LU-0026

Will be ordered for you
Timeframe: 10 days to 3 weeks
Estimated shipping: Between November 19 and 24, 2026

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Product description

Product description

Introducing Askar's 52mm F4 Guide Scope

Askar's 52mm F4 Guide Scope is designed for astrophotography enthusiasts who want precise guidance with a wide field of view. This guide scope is optimized to offer enhanced imaging quality, ideal for long exposures and visual observation.

Key features

  • Aperture : 52 mm
  • Focal length : 208 mm
  • Focal report : f/4
  • Lens type : doublet
  • Total weight of OTA : 0.63 kg
  • Total length : 212 mm

Benefits and design

  • Lightweight and compact, Askar's 52mm F4 Guide Scope weighs just 631 g, making it easy to handle while ensuring high stability.
  • The doublet of lenses and precise adjustment on the X and Y axes provide high precision for superior guidance.
  • With 164 % more aperture area than the 32 mm model, this guide-scope captures more light, reaching a limiting magnitude of 10.4.
  • This model features a built-in helical focus, manually adjustable for intuitive use.
  • It is compatible with the supplied 1.25" and M42 adapters, meeting astrophotography requirements and facilitating connection to an imaging chain.

Aesthetic options

  • Available in black and silver, this guide-scope's meticulous design and textured finish give it a modern, technical appearance.
  • The black model has a sober tone, while the silver model adds a technical touch with its metallic coating.

Included in the package

  • Main body
  • Instruction manual
  • Adapter M42x0.75
  • 1.25" adapter

Additional benefits

  • Vixen-style base for easy mounting
  • Durable metal design
  • Support for researcher base
  • Fine adjustment on X and Y axes for optimum precision

Conclusion

Askar's 52mm F4 Guide Scope is a robust and versatile guiding tool, ideal for amateur and professional astronomers who want to optimize their deep-sky imaging and observation sessions.

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Frequently asked questions

Frequently asked questions

What is this guide lens used for?

Cette lunette guide est une petite lunette de 52 mm pour 208 mm de focale (f/4). Montée en parallèle de votre instrument avec une caméra de guidage, elle sert à l'autoguidage : le logiciel (PHD2 par exemple) suit une étoile et corrige la monture pendant vos poses. Elle convient pour guider des instruments jusqu'à environ 1040 mm de focale.

Which guidance camera should be paired with it?

Une caméra de guidage à pixels de 2,9 µm (capteurs IMX462 ou IMX290) donne environ 2,9″ par pixel : assez précis pour guider une lunette ou une petite optique de photo.

Can it be used for imaging?

That's not what it's designed for: its achromatic objective is optimized for guiding, where minor chromatic aberrations are insignificant. For imaging, an apochromatic eyepiece makes all the difference.

How much weight does it add to the setup?

Environ 0,6 kg pour 21,2 cm de long, presque rien pour la monture.

Technical specifications

Technical specifications

Technical specifications

Optical type
Achromatic telescope
Diameter
52 mm
Focal length
208 mm
Focal Ratio (f/D)
f/4.0
Maximum magnification
104 ×
Separating power
2.23 ″
Tube length
21.2 cm
Tube weight
0.6 kg
Uses
Astrophotography
Documentation

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