Pentax 7mm XW Eyepiece with SMC Coatings - 1.25" - 70513 Telescope Packages Due to the waterproof design

Due to the waterproof design and the argon gas back-fill

10 mm Eye Relief

19" x 2" x 2") Celestron Product Number: 93452

on long focal length eyepieces the exit pupil position moves well beyond the designer'''s intended position

25" telescope

Pentax 7mm XW Eyepiece with SMC Coatings - 1.25" - 70513 Telescope Packages Due to the waterproof designPentax XW Eyepiece Series Featuring functional, practical focal lengths, the Pentax XW weatherproof eyepiece series provides a comprehensive line up of magnifications that accommodates all types of applications, from low magnification viewing of deep sky objects to high magnification observations of planets. About the Pentax 7mm XW 1. 25" Eyepiece The Pentax 7mm XW eyepiece offers clear, comfortable viewing, with a 70 apparent angle of view and 20mm