Antares 2X Barlow Lens - 1.25" - UB2S Mounting Rings High quality BaK-4 prisms provide

High quality BaK-4 prisms provide higher light transmission for better viewing in low light conditions

The ED objective lenses further enhance these features

Auto guide port

25% residual reflections (Baader filters are unique

Optical Coatings: Multi-Coated

Antares 2X Barlow Lens - 1.25" - UB2S Mounting Rings High quality BaK-4 prisms provideAntares Barlow Lens 1. 25" 2x Product Highlights: Antares Barlow Lens 1. 25" 2x 2x Increase of Nominal Focal Length 27 mm Aperture Doublet Accepts 1. 25" Eyepieces and Accessories Fully Multicoated Conventional Barlow Lens Functionality Antares barlows will extend the focal length of your telescope for greater magnification. By generating negative spherical aberration they correct that generated by positive eyepieces and they also will increase eye