There is a [url=https://www.altairastro.com/altair-60mm-guide-scope-kit-straight-thru-precision-locking-focuser-no-eyepiece-77-p.asp]locking focuser version[/url] and a [url=https://www.altairastro.com/altair-60mm-guide-scope-kit-straight-thru-non-rotating-helical-focuser-no-eyepiece-76-p.asp]helical focuser version[/url].
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