The Zeiss 46mm Carl Zeiss T* UV Filter aids in shooting in bright light. You may use it for lenses with 46mm threads. This filter minimizes the bluish daylight cast on images by absorbing UV rays. As the filter has a natural density, the original image coloration remains unaffected. The T* anti-reflective coating prevents reflections from the filter surface. The filter also protects the front lens elements from dust, moisture, and scratches.