The Celestron Luminos 2" Barlow Lens inserts between the eyepiece and the eyepiece holder on the telescope and increases the 2.5x magnification. It can be used with 1.25" eyepiece and 2" eyepieces. The 4-element fully multicoated lens assembly offers superb field flatness and minimal chromatic aberration.
Reviewed by 1 customers
I like how light this barlow is. Most of my 2 inch equipment is large and heavy. This not so much.