Pentax 20x60 Zoom Eyepiece for PF80EDA Spotting Scope<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"> Waterproof &amp; fogproof with minimum eye relief of 18mm </span></li><li><span class="a-list-item"> USA Standard 1.25" eyepiece threading diameter </span></li><li><span class="a-list-item"> Accepts conventional 1.25" diameter filters for astronomical and terrestrial applications . </span></li><li><span class="a-list-item"> Magnification: </span></li><li><span class="a-list-item"> Angle of View: </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/517PQh6gJ%2BL.jpg" noproxy>