Description
The Tiffen 4×5.65″ IRND 2.1 combines infrared control with neutral density, reducing visible light transmission without shifting scene colour while also blocking infrared contamination.
Digital sensors are inherently sensitive to infrared light, and the built-in IR-absorbing filters on most cameras can’t cut off sharply without also excluding visible red — some IR always leaks through, an effect that compounds with denser ND filters. Tiffen’s ColorCore technology eliminates IR bleed above 700nm, letting denser ND grades be used on light-sensitive digital cameras while keeping colour balance accurate. The filter is built from Water White glass, ground and polished for flatness and parallelism.
