Tiffen 4.5" Round IR Infrared ND Neutral Density 1.8 Hot Mirror Filter

The 4.5" Round Hot Mirror IR Neutral Density (ND) 1.8, 6-Stop Filter from Tiffen deals with color shift that is a critical factor in digital photography. This color shift is directly affected by the infrared spectrum. Specifically, in high definition photography, the sensitivity of imaging sensors to IR has become a challenge. This is particularly evident when using standard neutral density filters that absorb visible light but pass infrared.

This fine, optically pure water white glass, using Tiffens ColorCore Glass technology, sandwiching the coating within, so cleaning does not affect coating, is grinded with perfect parallelism and the highest possible standards of flatness to be a combo filter that consists of both IR and ND (Neutral Density) components, combating IR pollution in both the Near IR and IR regions of the spectrum.