Orion 8734 17mm 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 1.25" 17mm focal length Plossl eyepiece is ideal for all types of telescopes: reflector， refractor， and catadioptric designs including Mak-Cass telescopes and SCTs </span></li><li><span class="a-list-item"> Perfect for broad-field lunar observations， medium-sized star clusters， and a wide range of cloudy nebulas and deep-sky targets </span></li><li><span class="a-list-item"> Multi-coated to provide bright views of impressively high contrast </span></li><li><span class="a-list-item"> Offers a 52 apparent field of view for clear， crisp images of celestial and terrestrial objects </span></li><li><span class="a-list-item"> Threaded for use with 1.25" Orion filters </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41E8wc7AYHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41jsyTobA7L.jpg" noproxy>