Fotodiox Pro 145mm Neutral Density 16 (4-Stop) Filter - Pro1 Multi-Coated ND16 Filter (works with WonderPana 145 &amp; 66 Systems)<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"> Premium Grade Optical Glass Filter </span></li><li><span class="a-list-item"> 145mm x 1mm Standard Thread， both in the front and rear </span></li><li><span class="a-list-item"> Premium Grade Anodized Aluminum Filter Ring </span></li><li><span class="a-list-item"> Other Available 145mm Filters include CPL， ND4， ND8， ND16 &amp; ND32 Filters </span></li><li><span class="a-list-item"> 24 Month Manufacturer Warranty </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41JAZGfXWBL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41wF8IecH0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41j2ND4LDnL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41os6q0jiOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51I16-9qF3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51TNq2yAmoL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61gfT1M4veL.jpg" noproxy>