Used Wine Country Camera 100mm Filter Holder Kit.

The Wine Country Camera 100mm Filter Holder System is an innovative filter holder system for photographers using 100x100mm square and 100x150mm rectangular filters. The system features a series of design innovations that solve challenges faced by outdoor photographers such as light leak, filter breakage and critical focus during long exposures. The 100mm filter size is the most widely supported size of square and rectangular filter. Multiple manufacturers produce 100mm filters. This kit includes the holder, filter vaults and adapter ring for your lens. Simply choose the adapter ring that fits your lens.

The Polarizer
The Wine Country Camera 100mm holder system features an integrated rotating, circular polarizer. The polarizer fits inside the holder body, eliminating reflections and allowing geared rotation. Wine Country Camera's polarizer uses 2.5mm thick Schott optical glass that is fire polished, free of surface aberrations and suitable for use with the highest resolving cameras on the market - including 100+ megapixel medium format cameras. This polarizer works exclusively with the WCC 100mm Holder System.

Polarizer attachments on legacy holder systems are, in a word, awful. The light leaking behind the polarizers is severe and causes haze and reflections, the very thing you're trying to remove with the polarizer! Their removable polarizer is mounted inside the body of the holder, completely eliminating reflections and vignetting caused. Polarizer rotation is controlled by the adjustment knob. The knob is placed on the lower-left rear of the holder so you can adjust it while looking through the lens. It's geared so that the direction you turn the knob is the direction of filter rotation. And, they have made the knob from wood, so you don't have to freeze your fingertips off on those cold days.

Light Tight Recess for the ND Vault
Light leaking between the ND filter and the lens is the number one challenge faced by holder system users - until now. They have built a dedicated recess into the holder system to create a light-tight environment for the ND filter. This feature alone makes the WCC Holder System the de facto standard for long exposure photographers. The vault surrounds your ND filter on all four sides, eliminating internal reflections caused by light entering on-edge, ensuring that your ND filter provides high-fidelity and high-contrast.

Push-button Adjustable Grad Vaults
The holder system features two stages for grad filters. Each stage is independently adjustable. Simply push the button, adjust the horizon line of the filter and release. And because you were just about to ask - yes the grad vaults are keyed for safety so your valuable filter doesn't go plummeting into the earth the moment you push the button. They have got your back.

Light Weight
A complete holder system with two vaults, polarizer and adapter ring is less than a pound (around 15 ounces or 0.42 kilos)

Do Not Disturb Release
Installing or removing the holder without disturbing framing or focus is absolutely critical, especially for long exposure photographers who must frame and focus the image before adding a heavy stack of ND.

Wood Handles
Most epic locations are pretty chilly. So they designed the holder with wooden handles so that your fingers will enjoy outdoor photography as much as the rest of your body. The wood is weather sealed for longevity.

Low Vignetting
Wine Country Camera worked tirelessly throughout the design process to gain back every millimeter between the adapter ring and the outer grad tray to ensure that vignetting was reduced to an absolute minimum. The wood handles are even carved away to reduce vignetting. No detail is too small.