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Cylindrical brass clamp ring with knurled silver barrel, 50.8 mm diameter

Baader Planetarium

Baader Planetarium Hyperion 2" Finetuning Stopring Brass Clampring 50.8

SKU CH-0CP6-GE5WR

A 2" finetuning stopring with a brass clampring secures eyepieces and prevents damage to star diagonals

  • Pinpoint focus with 2" finetuning stopring for ultra-fine adjustments
  • Brass clampring gives firm, non-marring grip to protect valuable optics
  • Fits 50.8 mm accessories for wide telescope and imaging compatibility
  • Reduces internal reflections and stray light for better contrast and detail
  • Prevents 1" eyepiece barrel from damaging mirror or prism star diagonals

Precision Focus Accessory

The Baader Planetarium Hyperion 2" Finetuning Stopring with Brass Clampring provides ultra-fine focus adjustments for astronomical imaging. Its brass clampring delivers a secure, non-marring grip on valuable optics. The unit is designed for 2" / 50.8 cm accessories to minimise internal reflections and stray light.

Ideal Users and Limitations

This stopring suits astrophotographers who require precise exposure control and enhanced image contrast with their existing 2" diagonal setup. It is not intended for users without a 2" mirror or prism star diagonal, nor for those needing focus control on smaller barrel diameters.

Critical Specification

The stopring is specifically engineered for 2" / 50.8 cm accessory compatibility and functions as a protective interface between the eyepiece barrel and the diagonal. Buyers must confirm their diagonal accepts this exact diameter before purchase.

Highlights

  • Pinpoint focus with 2" finetuning stopring for ultra-fine adjustments
  • Brass clampring gives firm, non-marring grip to protect valuable optics
  • Fits 50.8 mm accessories for wide telescope and imaging compatibility
  • Reduces internal reflections and stray light for better contrast and detail
  • Prevents 1" eyepiece barrel from damaging mirror or prism star diagonals

Specifications

No published specifications for this item yet.

Questions about this item

How do I verify the brass clampring is gripping the 50.8 mm barrel without marring it?

After setup, check that the eyepiece sits firmly in the diagonal with no rotational play and inspect the barrel for marks; the brass clampring should hold securely while leaving the surface unblemished.

What comes in the box and do I need a 2" mirror or prism star diagonal separately?

The package contains only the Hyperion 2" Finetuning Stopring with its brass clampring; a compatible 2" mirror or prism star diagonal must be purchased separately for the stopring to function.

Is this stopring sized for 50.8 mm accessories or a different diameter?

It is made for 2" / 50.8 mm accessories, so choose this version when your diagonal and eyepieces use the standard 50.8 mm barrel size.

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