Home > Extensions Spacers & Adapters > Self Centering Extensions & Adapters > Altair 2" Precision Self Centring tube with 35mm barrel - Twist Lock

Altair 2" Precision Self Centring tube with 35mm barrel - Twist Lock

£19.50
Incl. VAT 20.00 % ( £3.25 )
Product Code
2-35-SCAD
Manufacturer
Altair Astro
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This 2" Precision Self Centering Adapter with 35mm extension tube barrel is designed to keep your telescope in collimation when you change accessories such as a CCD camera or eyepiece. Recommended for fast focal ratio telescopes where keeping collimation is critical.
 
The problem: Conventional push-fit adapters with thumbscrews cause pressure on the side of the eyepiece barrel or camera nosepiece, which is naturally slightly different each time you remove or replace your camera or eyepiece. This pressure isn't repeatable, and that's why you often have to collimate your telescope with the camera or eypiece attached for best results.
 
The solution: The Self-Centering Adapter gets around this problem by applying an even clamping pressure all the way around the 2" eyepiece or camera barrel. It therefore remains in collimation even if you remove and replace the camera or eyepiece. When collimating your telescope for imaging, you can leave the Precision Self Centering Adapter in place and change accessories at will. The Self Centering Adapter adds 35mm of extension to the optical path length.
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