Hoya 40.5mm UX II UV Filter 

Though not visible to the naked eye, UV light rays are visible to camera sensors and film. They can adversely affect the image when shooting in locations like the seaside, landscapes or mountainous environments, resulting in blurred contours or faded and whitish images. UV filters are able to suppress the UV spectrum contained in daylight that causes poor effect on images.

This filter can be used with both film and digital cameras and provides more vivid images. In addition, by keeping it constantly attached to the lens, this filter serves as everyday lens protection.

• Anti-reflection coating - prevents unwanted reflections and increases light transmittance
• Water-Repellent Coating - repels water droplets, making it easier to keep the filter clean
• Slim filter frame - avoids vignetting on wide angle lenses, also holds a lens cap
• High quality HOYA optical glass
• Constant use protects front of lens

HOYA's UX II filters feature a 10-layer HMC-WR multi-coating with anti-reflection and water-repellent capabilities for fingerprint and smudge resistance (UV model), and Low-profile aluminium frame.

'UX' in the series name stands for "User eXperience", inspired by the memorable experiences that users acquire through using these filters. By naming this series 'UX', HOYA aims to offer users better individual experiences through all the activities connected with their photography.