Help you obtain the correct image scale; SV158 extension tube provides extra focuser "back travel" often needed for short-range terrestrial viewing through a telescope, or for astrophotographic applications
Includes two thumbscrews; SV158 2" extension tube comes with two locking thumbscrew to secure any inserted astronomy accessory
Threaded for use with 2" telescope eyepiece filters; SV158 extension tube fits in 2" telescope focusers; and accepts 2" filters
Machined and anodized aluminum tube; SV158 extension tube is made of anodized machined aluminum
Very well constructed with an brass compression ring to grip the barrel of the telescope; This will make sure that the screws will not dig into the barrel and protect your devices
-10%
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