The Hoya ND 4 HMC 49mm filter is essential in high light intensity conditions, such as sunny days on snowy mountains or at the beach. Neutral density (ND) filters reduce the amount of light reaching the camera without affecting color balance.

• For using slow shutter speeds to capture motion in subjects like waterfalls, clouds, cars, seas, etc.
• To reduce depth of field, allowing for large apertures that help to distinguish the subject from the background.
• To lower the ISO sensitivity of high-speed films (above ISO400) for use in very bright conditions.
• To support video recording with cine cameras in bright scenes, such as snow or sand, without overexposure.