Astro Basics 6mm Standard Eyepiece\n\nRRP \u00A313.99\nSave over 40% with Buy It Now + Free UK Postage. Supplied\nwith Storage Case\n\nFully Coated - Standard 1.25\"" (31.77mm) Fitting\n\nAstro Basics standard eyepieces provide excellent value for money for beginners \n\nSupplied in protective storage case.\n\nFeatures:\n\n1.25\"" (31.7mm) barrel fits any telescope with a standard 1.25 inch fitting.\n\nThreaded to accept 1.25\"" filters \n\nFully coated optics \n\nEyepiece appearance may vary slightly as shown in images\n\nThis listing is for one 6mm\neyepiece only - group image to show varying design \n(4mm, 6mm, 12mm and 20mm sizes in the Astro Basics range)\n\nWhat Magnification is this\nEyepiece?\n\nThe\nmagnification produced\nby an eyepiece depends on the optical system it is used in. In a\nstandard astronomical telescope the magnification is found by dividing\nthe focal length of the main tube by that of the eyepiece. For example,\na 1000mm scope tube used with a 10mm eyepiece gi.