Ts-optics 2 Extension Tube With Brass Compression Ring For Telescopes - Length 80mm from TS-Optics

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Manufacturer Description

TS Optics extension tube for 2" receptacles - 80mm Long
An extension tube is the ideal solution if the focal point is too far away from the focuser. In many cases, it allows the photographic use of a telescope. This extension bridges 80 mm optical path. So the focuser does not have to be screwed out to the hard stop and the mechanical stability is increased.
In the calculation of the optical length, the 2" barrel is not taken into account because it sits inside the focuser´s drawtube.
Details:
Telescope side connection: 2" nosepiece with filter thread (M48x0.75)
Eyepiece side connection: 2" receptacle with brass compression ring
Optical length: 80mm
Total length: approx 115mm