65-808 50 mm Dia. Hoya ND-70 Absorptive Neutral Density (OD 0.1) Color Filter; t=1.2 mm 400-700nm

The 65-808 is a 50 mm diameter Circular Color Glass Filter manufactured by Hoya, a renowned name in the optical industry. This filter is part of the Absorptive Neutral Density series, specifically designed with an ND-70 rating, which translates to an Optical Density (OD) of 0.1. The ND-70 designation indicates that this filter reduces the light intensity by 10%.

The filter's primary function is to minimize the amount of light entering the optical path without altering the color composition. This makes it an ideal tool for managing exposure in various applications, such as photography and scientific research. The 0.1 OD ensures a subtle reduction in light intensity, providing a gentle touch when managing light conditions.

The filter is constructed with a Thin Lens shape, boasting a thickness of 1.2 mm. This design ensures minimal distortion and maintains the integrity of the optical path. The filter's geometry is further enhanced by its 50 mm diameter, offering a versatile size suitable for a wide range of optical systems.

The 65-808 filter features a coating on both the front and back surfaces, identified as EDM 63-456. This coating is designed to enhance the filter's performance and durability, providing resistance to scratches and other potential damage.

This filter is available from Edmund Optics and can be found on their official website. The product listing is currently valid and indicates that the filter is in stock, ensuring quick and efficient delivery for your optical needs.