Solomark F60 60mm Guidescope 215mm Focal Length， F/3.6 Focal Ratio， Fully Coated w/ Helical Focuser<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"> 60mm guide scope with bright， wide-field optics puts numerous potential guide stars in view so you'll never have to search for one! </span></li><li><span class="a-list-item"> Very small and compact autoguiding system adds hardly any weight to an astrophotography setup and can conveniently be stashed in an accessory case between uses </span></li><li><span class="a-list-item"> Compact mini guide scope designed for use with astrophotography telescopes up to 1500mm focal length </span></li><li><span class="a-list-item"> Quick focus retractable tube with 1mm scale， can be locked in place. Precision non-rotating micro-focuser with 1/10mm scale. </span></li><li><span class="a-list-item"> Fits standard Celestron， Skywatcher， Vixen &amp; GSO type saddles. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41xUW%2BPMd5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/412-7jTdzUL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/419sFpstvtL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41CJkfsoOhL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51GdbCS8KHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41F%2BK%2B3IToL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41NxghRFJML.jpg" noproxy>