Tele Vue Optics 2” Eyepiece Barrel Extension:

Enhancing Your Viewing Experience

Key Features:

Backfocus Distance Increase: The 2" Eyepiece Barrel Extender (EBX-2120) is designed to extend the backfocus distance, providing improved versatility for your telescope setup.
Filter Mounting Capability: This extender offers a convenient mounting location for 2" (48mm) eyepiece filters, enhancing your observational possibilities.
Parfocalization Aid: Assists in making eyepiece sets parfocal, streamlining the viewing process by reducing the need for frequent focus adjustments.
Compatibility with Ethos Models: The extender can be used with Ethos models that have dual 2" / 1¼" barrels, expanding the utility of these eyepieces.
Enhances Nagler Type-4 Eyepieces: Specifically, the EBX-2120 makes the 12mm Nagler Type-4 eyepiece approximately parfocal with the 17mm and 22mm Nagler Type-4 eyepieces when used in a Tele Vue 2" diagonal.
Optimized for 55mm Plössl: The extender is particularly beneficial for the 55mm Plössl eyepiece, making it approximately parfocal with the 27mm Panoptic eyepiece.
Extended Focusing Range: Addresses the need for extra focuser travel, especially relevant for eyepieces like the 55mm Plössl with a field stop located near the barrel's bottom.
Quality Construction: As with all Tele Vue products, the barrel extender is made with high-quality materials and craftsmanship, ensuring durability and reliable performance.
Easy Installation: Designed for straightforward attachment, enhancing the usability of your eyepieces without complicated setup procedures.
Versatile Accessory for Observers: An essential tool for amateur astronomers and professionals alike, offering enhanced flexibility and convenience in various observational settings.

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Tele Vue Optics 2” Eyepiece Barrel Extension

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