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Alstar 2 inch to 1.25 inch Telescope Eyepiece Adapter - Premium Thumbscrew Barlow Lens Adapter Effortlessly Adapt 1.25 inch eyepieces to Any 2 inch Telescope focuser

5.0 (3) Write Review
Free shipping on orders over $29.99

$17.97

$ 8 .99 $8.99

In Stock

About this item

  • Allows you to use 1.25 inch eyepieces in any 2 inch telescopes focuser; star diagonal; or holder
  • An affordable way to increase the number of eyepieces to use with your 2 inch focuser equipped telescope
  • Great for performing lunar and planetary viewing in larger telescopes
  • This is a very good quality anodized aluminum adapter that has filter threads at the bottom for 2 inch and 1.25 inch telescope filters
  • Ideal for using high power; low focal length 1.25 inch eyepieces in a big 2 inch telescope focuser


Product Description

Freedom to Choose

Function Point 1

Optical Length 80mm

Function Point 1

Five different filter sets with different functions

Function Point 1

Planetary contrast enhancement and light pollution reduction

Function Point 2

Two locking thumbscrews to secure any inserted astronomy accessory

Function Point 2

Made of metal and is extremely thin to minimize shadows and diffraction

Function Point 2

Improved supression of chromatic aberrations for astrophotography applications

1

Allows you to use 1.25" eyepieces in any 2" telescopes focuser, star diagonal, or holder.

2

An affordable way to increase the number of eyepieces to use with your 2" focuser-equipped telescope.

3

This is a very high quality anodized aluminum adapter that has filter threads at the bottom for 2" telescope filters.

4

Ideal for using high-power, low focal length 1.25" eyepieces in a big 2" telescope focuser.

5

Dustin P.
Reviewed in the United States on September 15, 2024
Once again they deliver a quality build at a great price. Idk how they keep prices so low.
Ric. in west
Reviewed in the United States on September 23, 2023
I modified my 4 in telescope with a 2 inch focuser , then found any 2 inch lense less than 10 mm for higher mag. very expensive, so tried this. Yep. works well and easy to focus with 7 mm. 1,25 inch lens. I was worried about that - changing from the 2 inch lens, 35 mag but not bad at all.
Joseph
Reviewed in the United States on June 2, 2023
I have an Orion XT 10 Dob. The screw to my adapter sheered of in transport. This is a good replacement. It fits as expected.