Critically sharp with the highest light transmission on the market, the X4 UV provides superior lens protection and optical clarity. Featuring state-of-the-art coatings and a rugged traction frame, the X4 UV is built to withstand a lifetime of use.
The X4 UV utilizes SCHOTT B270® ultra-clear crown glass and protective layers of our cutting edge MRC16 and nanotec® Nano Coating layers which eliminate reflections and increase transmission. The sharpest UV filter you can find - guaranteed.
Spectrometers are used to measure the amount of light that passes through a filter. UV filters should protect the lens without any loss of light transmission. The X4 UV has an ultra-high, industry-leading average light transmission of 99.2% throughout the visible range which translates into critically sharp images and crystal clear of optical performance.
We engineer every one of our filters to withstand a lifetime of use in the field. Thats why the X4 UV is precision machined from high-quality brass with our signature traction frame. Our rugged design was developed to optimize feel and make it easy to securely attach and remove the filter - even with gloves in cold conditions.
The X4 frames complete the weather-seal on the lens and are built to withstand extreme wind, salt water, dust and any other abrasive elements found in nature.
The X4 UV has an ultra-slim, double-threaded design which eliminates vignetting on wide-angle, full-frame setups and allows for easy filter stacking and lens cap attachment. With its matte black, electroplated finish, the X4 frame also reduces reflections by absorbing light rather than directing it into the lens barrel.
We stand behind every filter we make with our 25 Year Ironclad Guarantee. Our team spent years developing every aspect of the X4 UV to maintain optical performance and reliable function for a lifetime of use. So we guarantee that our filters will remain free from manufacturers defects for 25 years from the date of purchase.
Every filter has a unique serial number laser engraved onto the frame. When you activate your 25 Year Ironclad Guarantee, we assign this number to you.
After activation, if you ever need to contact us for support, you won’t need your purchase information or receipt again. This allows us to resolve any issues quickly and any feedback you provide to us about your filter can go directly into future products.
Our X4 UV filters are designed to hold up for years of regular use in the field. Each filter completes the weather-sealing of the lens and can withstand extreme wind, salt water, dust and other abrasive elements and conditions.
Each filter incorporates our state-of-the-art nanotec® Nano Coating technology which repels dirt, water and other debris by beading up on the surface rather than absorbing and smearing.
We stand behind each filter with our 25 Year Ironclad Guarantee and US-based phone, email and live chat support.
