Premium apochromatic Barlow lens with four lens design; simple to increase your eyepiece's magnification; no chromatic aberration
Take high-end quality planetary photos; multi-layer; multi-coating for high contrast
Very high-quality aluminium housing with rubber armoured grip; sharp; brilliant image; compression ring to protect your eyepieces
Wide 66-deg apparent field offers expansive views of the moon; star clusters; and the Milky Way; generous 13mm eye relief allows comfortable viewing distance and lets eyeglass wearers see the entire field of view
15mm eyepiece offer wide field of view and superior performance; 4-element design deliver sharp image with good color correction and contrast; aluminum 1.25 inch barrel is internally blackened to eliminate light scattering; thread accept 1.25 inch filter