The WonderPana Absolute Core for Tokina Fisheye 10-17mm f/3.5-4.5 Lens from Fotodiox enables you to use your separately purchased Cokin X-Pro (XL) and/or Lee SW-150 filters and separately purchased holder with the Tokina Fisheye 10-17mm f/3.5-4.5 lens using this compatible mounting ring. Due to how this unique mounting ring attaches to the lens, the lens does not need filter threads and will not interfere with the zoom abilities of the lens.
Fotodiox has also designed these mounting rings to place the Cokin X-Pro (XL) and/or Lee SW-150 holder closer to the lens, minimizing the space between the filter and lens front which further reduces the amount of light leak and reflection bounce-back. This adapter mount securely and firmly connects the Cokin X-Pro (XL) and/or Lee SW-150 style filter holder to your ultra wide angle lens with no vignetting. You can easily switch from Lee filters to Cokin filters to the Fotodiox WonderPana filter system with just a few quick turns of this mount. Like all products in the WonderPana line this is made from high quality anodized aluminum alloy so it will hold up to extreme conditions for years to come.