The X4featuresSCHOTT Ultrawhite B270optical glass madein Germany.Ourstate-of-the-artmulti-resistant coating has 16-layers (MRC16)whichincreaseslight transmission to 99.4% and creates a protective layer thats structurally harder than the glass.

The forefront of Nano Coatings built into both sides.

Thebreakthrough nanotec Nano Coating layer repels dirt, water and other elements by beading rather than absorbing, making it easier (and faster) than ever to clean.

A breakthrough design that has traction.

In addition to featuring the highest resolving optics for todays highest quality lenses, Breakthrough Photography wanted to create a filter that was thinner and therefore lighter, but at the same time increase its functionality and its durability. That led to some really surprising design challenges and innovations.

To achieve this they took the entire filter concept and went back to the drawing board. Its incredibly important to have filters on tight and very secure, as camera equipment unfortunately gets banged around quite a bit, and a filter falling off is not a good situation to be in.

Even despite the early tooling challenges during the prototype phase, and even thoughit was quite a bit more expensive to manufacture, the feedback received from photographers was overwhelming traction frames are better than standard flat black frames.

Full traction texture around the entire circumference of the X4makes it eas