Tiffen has launched a new range of Neutral Density (ND) filters in the XLE series that can reduce the red colour cast while shooting at long exposures, which is a common problem faced by photographers using ND filters. There are 3 filters in the series—Axent, Advantix and Apex. The Axent is a 10-stop ND filter without infrared control. The Advantix can cut wavelengths of around 800nm. The Apex makes use of the Tiffen Hot Mirror and hence can cut all infrared wavelengths.
