Heliopan 49mm Slim Circular Polarizer SH-PMC Filter (704940) 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"> Reduce/Eliminate Reflections And Haze And Improve Color And Tonal Saturation </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><li><span class="a-list-item"> For brilliant color reproduction， best contrast and sharpness Heliopan offers the highest quality optical glass from the German Schott Group. </span></li><li><span class="a-list-item"> SH-PMC broadband coatings of 8 layers per side for the highest reflection reduction (below 0.2%). Dust and moisture repellent top coating on each side for easy cleaning and longest life </span></li><li><span class="a-list-item"> Slim mount does not vignette with 21mm lenses. </span></li><li><span class="a-list-item"> Minimal reflections because of matte black anodized brass filter rims which will not bind when threaded in combination with other metals. </span></li><li><span class="a-list-item"> Limited Lifetime Warranty </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41RdZf186XL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ADUTRcikL.jpg" noproxy>