Tiffen 46SHM 46mm Hot Mirror Filter

The Tiffen 46mm Hot Mirror filter is a specialized optical accessory designed to block infrared radiation from passing through to your camera's imaging sensor. Digital sensors are inherently sensitive to infrared light, which can introduce unwanted warm color casts, reduce contrast, and affect overall color accuracy—particularly under artificial or mixed lighting conditions. By absorbing and reflecting IR wavelengths while transmitting visible light, this Hot Mirror filter helps restore natural, true-to-life color reproduction in both still images and video footage.

Sized at 46mm, this filter threads directly onto compatible lenses and adds minimal weight and bulk to your setup. It is manufactured in the United States by Tiffen, a well-known name in photographic and cinematographic filtration. The filter is particularly useful for videographers working with cameras that have weaker built-in IR-cut filters, or for photographers shooting in conditions where infrared contamination is most noticeable, such as under hot studio lights or strong daylight. It is a single-purpose tool that does one thing well: keeping infrared light from degrading your image quality.