Explore Scientific 2" 3X Focal Extender - FE03-020

This 3x focal extender takes standard 2" eyepieces and camera adapters and triples their magnification, letting three eyepieces cover six magnification steps without buying more glass. It also accepts 1.25" format eyepieces, so it works across a mixed eyepiece collection. Because you're extending a lower-power eyepiece rather than switching to a higher-power one outright, you keep that eyepiece's more generous eye relief, a real benefit for eyeglass wearers or anyone pushing a fast telescope to high magnification.

• 3x magnification, 2" barrel: accepts both 1.25" and 2.0" O.D. eyepieces and camera adapters.
• Fully EMD-coated optics: all air-to-air lens surfaces coated with edge-blackened elements for superior contrast.
• Retains eye relief: extending a lower-power eyepiece keeps its more comfortable eye relief versus buying a high-power eyepiece outright.
• Compact size: 125mm long, 66mm wide, and 1.7 lbs.