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Feature

Zoom telescope eyepiece with 7.2mm to 21.5mm focal length range provides a variety of viewing magnifications in a single eyepiece
Provides a 40-degree field of view at 21.5mm, and a wide 60-degree field of view at 7.2mm
Comfortable 15mm eye relief
Fully multi-coated 7-element optics for clear, crisp images
Threaded for use with 1.25" Orion eyepiece filters

Description

This affordable telescope eyepiece offers versatile viewing options for skywatchers of all levels. The focal length varies from 7.2mm to 21.mm with markings of 7.2mm, 10mm, 13.5mm, and 21.5mm. The Zooom eyepiece's design consists of 7 lens elements in 4 groups and features fully multi-coated optics for clear, crisp images, a 40-degree field of view at 21.5mm, 60-degree field of view at 7.2mm and a comfortable 15mm eye relief, barrel threaded for Orion 1.25" filters.