Explore Scientific 5X Focal Extender - 1.25" - FE05-125 Eyepiece Kits Inside Dimensions: 12

Inside Dimensions: 12

Dimensions: L=114

The Tele Vue 11mm Plossl Eyepiece focal plane is placed at the end of the barrel to minimize vignetting

Contrast is maximized through the intelligent use of flat finished baffles

Excellent 60 degree field of view

Explore Scientific 5X Focal Extender - 1.25" - FE05-125 Eyepiece Kits Inside Dimensions: 12About the Explore Scientific 5X Focal Extender 1. 25" A good Focal Extender adds some real versatility to your telescope accessory line up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces have better eye relief than higher