Heliopan 37mm Circular Polarizer SH-PMC Filter (703746) with specialty Schott glass in floating brass ring<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"> Removes Reflections And Increases Color Saturation Without Affecting The Overall Color Balance </span></li><li><span class="a-list-item"> 16-Layer Multi-Coating </span></li><li><span class="a-list-item"> Filter Factor: Between 2.3 And 2.8 (Approx. +1.3 Stops) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41RdZf186XL.jpg" noproxy>