TeleVue - 3.5" Long Extension for 2" Focusers

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Availability: In stock

This TeleVue's 2" diameter extension tube is 3.5" in length, and is handy for retaining the optical path length when replacing a star diagonal or when focus is moved out by eyepiece projection & Barlow photography. It will accept 48mm filters and has anti-reflective threads & extra-long locking screws which help ensure eyepieces are locked securely in place. Tele Vue's adapters use a brass clamping ring to fully encircle the device you're attaching, as opposed to other's efforts which just use a set screw.

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SKU: TEL-X3C-0009