Sky Mentor 3X Five Element Barlow Lens - 2" with 1.25" Adapter - 3XBARLOW-2 Imaging Adapter The prism are made of

The prism are made of BaK-4 glass to give you enhanced color fidelity

Eye Relief: 12mm

Near Focus: 13

This photo adapter

Sky Mentor 3X Five Element Barlow Lens - 2" with 1.25" Adapter - 3XBARLOW-2 Imaging Adapter The prism are made ofAbout the Sky Mentor 3X Five Element Barlow Lens The Sky Mentor 3X Five Element Barlow Lens 2" will come in handy for extending the effective focal length of short tube telescopes, to give them more magnifying power. It is the most powerful 2 inch barlow in existence, period! The Sky Mentor Optics Barlow employs a sophisticated 5 element lens configuration engineered to render optically flatter, sharper images than standard barlows can provide. The