SV191 Excellent 7.2 to 21.6mm zoom eyepiece with a large field of view up to 65° allows you to cycle through the focal length range without having to refocus after each new magnification setting and without missing the desired object that is commonly missed with the change of eyepiece

SV191 zoom eyepiece can meet the needs of most people; including the needs of users who wear glasses thanks to its eye relief up to 20mm.

Features:

• One eyepiece for multiple uses; SV191 7.2-21.6mm zoom eyepiece lets you change magnification power without changing eyepieces
• 1.25-inch standard eyepiece; Not just for astronomical telescopes; but also for the scope of locating objects more easily.
• 7-element, 4-group lens structure made of high-index glass for sharp, high-contrast views
• Filter threads M28.5*0.6; the base of the SV191 zoom lens has a threaded adapter that allows for a standard 1.25-inch filter
• 18-20mm eye relief with rubberized prescription accents provide comfortable long-term viewing for people with or without glasses.