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Black anodized aluminium 2 to 1.25 inch adapter with brass clamp ring

Tele Vue

Tele Vue 2-1.25" Flat Top Adapter with Brass Clamp Ring

SKU CH-3SGA-S4H2W

Connects a 1.25-inch eyepiece to a 2-inch focuser using a flat-top design and brass clamp ring for a secure hold

  • Closer eyepiece placement thanks to flat-top design
  • Secure eyepiece hold via brass clamp ring
  • Durable black anodized aluminum construction
  • Fits 1.25-inch eyepieces on 2-inch focusers
  • Compatible with Newtonian reflectors, Paracorr, Powermate, Big Barlow

What it is

The Tele Vue 2-1.25" Flat Top Adapter with Brass Clamp Ring is a precision accessory made from black anodized aluminum. It lets you use a 1.25-inch barrel eyepiece in a 2-inch focuser on a telescope or microscope. The flat-top profile reduces the distance between the eyepiece and the focal plane.

Compatibility

This adapter fits Newtonian reflectors and works with Tele Vue Paracorr, 2" Powermate, and 2" Big Barlow units. The brass clamp ring locks the eyepiece barrel securely without marring the surface. It is not suited for focusers that accept only 1.25-inch accessories or for proprietary barrel sizes.

Build and handling

The all-metal construction adds negligible mass to the optical train and requires no power or cooling. The anodized finish resists corrosion and stray reflections during long observing sessions. The clamp ring operates smoothly by hand, so no tools are needed in the field.

Highlights

  • Closer eyepiece placement thanks to flat-top design
  • Secure eyepiece hold via brass clamp ring
  • Durable black anodized aluminum construction
  • Fits 1.25-inch eyepieces on 2-inch focusers
  • Compatible with Newtonian reflectors, Paracorr, Powermate, Big Barlow

Specifications

No published specifications for this item yet.

Questions about this item

How does the flat-top design change the eyepiece position on my focuser?

The flat-top design lets the 1.25-inch eyepiece sit closer to the 2-inch focuser drawtube, reducing the overall profile and keeping the optical path shorter.

What does the brass clamp ring actually grip on a 1.25-inch barrel?

The brass clamp ring tightens evenly around the 1.25-inch eyepiece barrel, distributing pressure without marring the chrome finish and preventing rotation during viewing.

How much clearance do I need behind my 2-inch focuser to install this adapter?

The adapter adds minimal back-focus thanks to its low-profile flat top, so it fits most Newtonian reflectors, Paracorr, 2" Powermate and 2" Big Barlow setups without extra spacing.

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