More on Amazon.com : http://www.amazon.com/gp/product/B000J5OTBM?tag=thefatkidin06-20 <br /> <br />Orion 8450 12.5mm Illuminated Reticle Plossl Telescope Eyepiece <br /> <br />Four-element 125mm focal length 125 Plossl telescope eyepiece with an illuminated double crossline reticle <br />Excellent for accurate polar alignment GoTo system alignment IntelliScope system alignment and acquiring and centering of guide stars for guided astrophotography pursuits <br />Fully multi-coated lenses provide bright views with a 40 apparent field of view <br />LED-illuminated double crossline reticle has adjustable focus and brightness <br />Illuminator requires three GP-189 batteries included
