Description
Use this female T-thread to male T-thread spacer to extend standard T-thread adapters to achieve the correct backfocus for your telescope. Available in 0.25″, 0.5″, 0.625″, 0.75″ and 1.00″ lengths. Outside diameter is 1.90″. Anodized black aluminum, internally threaded for light baffling. Made in USA.
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