Orion 8739 6.3mm Sirius Plossl Telescope Eyepiece<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> This 6.3mm Orion Sirius Plossl eyepiece is ideal for all types of telescopes: reflector， refractor， and catadioptric </span></li><li><span class="a-list-item"> Superb 6.3mm focal length 1.25" eyepiece for high-power planetary and lunar observation in any telescope </span></li><li><span class="a-list-item"> Offers a 52 apparent field of view for clear， sharp views of impressively high contrast </span></li><li><span class="a-list-item"> Fully coated optics with magnesium fluoride on every air-to-glass surface to reduce reflection and increase light transmission </span></li><li><span class="a-list-item"> Eyepiece barrel threaded for use with 1.25" Orion filters </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41S5Z1VCG9L.jpg" noproxy>