Tele vue Eyepiece Barrel Extender - 2

$36.00
Article number: EBX-2120
Availability: More on the Way to us
Delivery time: More on the Way to us

* The Tele Vue 2" Eyepiece Barrel Extender reduces the focus travel of the Tele Vue 55mm Plossl.

* This extender will also allow the addition of 2 inch filters onto hybrid combination eyepieces such as the Ethos 13mm and the Nagler 22mm. It will extend the 2 inch collar past the extension of the smaller 1.25 inch barrel.

* Includes threads that will accept most 2" filters.

* The Tele Vue 2" Eyepiece Barrel Extender is fashioned from lightweight aluminum with precision threads.

The 2" Eyepiece Barrel Extender (EBX-2120) increases backfocus distance and provides a mounting location for 2" (48mm) eyepiece filters. It can also help parfocalize eyepiece sets. Extender adds 1.2-inches to the 2" barrel.

Ethos

Models with dual 2" / 1¼" barrels can use the extender.

12mm Nagler Type-4

The EBX-2120 makes the 12mm approximately parfocal with the 17mm and 22mm Nagler Type-4 eyepieces when used in a Tele Vue 2" diagonal.

55mm Plössl

Because the field stop is located near the bottom of the chrome eyepiece barrel, you will need to rack your focuser out further, relative to most other eyepieces. If you find that you cannot rack your focuser out enough to achieve focus, we strongly recommend you purchase our EBX-2120. This will make Tele Vue's 55mm Plössl eyepiece approximately parfocal with our 27mm Panoptic eyepiece.

 When joining eyepieces with dual 2" / 1¼" barrels to the 2" Barrel Extender (12mm Nagler Type-4 shown), remove the lock screw in the 2" barrel section of the eyepiece.

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