Meade Instruments 07069 12-Millimeter Modified Achromatic Eyepiece with Illuminated 1.25-Inch Reticle (Black) Includes (4) types of measuring scales Ideal for measuring double star angular separations, position angles, planetary diameters and lunar crater diameters Features a double crossline scale thats ideal for long-exposure photo-guiding 3-element optical system provides sharp images along a full field view with dioptric adjustment and a rubber eyecup Comes with a 1-year limited warranty