Meade's #127 2X-3X variable Barlow Lens includes a precision, sliding lens assembly, permitting continuously variable power factor between 2X and 3X. Positive stops are provided at both ends of lens travel, and an engraved scale indicates the power in use. Clear aperture is 25mm, weight is 6.5 ounces, and the unit is 5 inches long. This popular, high-performance Barlow is recommended for use on telescopes with focal ratios of f/6 and longer.

Not recommended for use with Meade ETX-70/90/105/125 telescopes.