GSO 1.25-inch 3-Element 2.5X Barlow Lens Fully Multi-coated Astronomical Telescope Accessory

GSO 1.25-inch 3-Element 2.5X Barlow Lens Fully Multi-coated Astronomical Telescope Accessory

Specification:
- Magnification factor: 2.5X - visual use
- Optical layout: 3 element APO design (air-spaced)
- Clear aperture: 23mm
- Coating: fully multi-coated
- Blackened lens edges: Yes, for suppression of internal reflections.
- Mechanical quality: all metal design
- Clamp mechanism: precise lock by brass compression ring

Package Included:
- 1 x Barlow Lens