The Tiffen 4.5" Round T1 Infrared Filter is a high-tech filter designed to eliminate infrared contamination at 680nm. This filter will help you maintain your colour spectrum when shooting on dark fabric. You'll notice that blacks come out faithfully without colour cast from the red end of the spectrum.

This filter was created to help capture a much wider colour spectrum than previous infrared filters - particularly with digital camcorders. Colour shift is a critical factor in digital photography, especially when dealing with the infrared spectrum - and even more important when shooting in HD technology.
Unlike traditional film cameras, the CCD or CMOS sensors of a digital camera are, by nature, sensitive to infrared contamination. Manufacturers try to avoid this problem by incorporating an infrared-absorbing filter above the image sensor. As these filters don't have a sharp cut-off at infrared wavelengths, a compromise must be made to avoid excluding visible red wavelengths. Despite these precautions, some infrared wavelengths pass through, resulting in image contamination.

Tiffen's Water White glass, using their ColorCore technology, is characterised by high transmission quality. Typically, it will transmit 98-99% of light. It also features anti-glare and anti-reflective qualities that make it useful in a wide range of applications, including the film industry, shop windows and art exhibitions. The glass is virtually flawless and is becoming increasingly prevalent in digital equipment.


- Helps eliminate red contamination on dark products and fabrics
- Good for digital photography
- Can be used permanently with most digital cameras
- Tiffen's ColorCore technology is produced by a process that involves permanently laminating the filter material between two pieces of optical glass polished to tolerances of one ten-thousandth of an inch, then mounting them in precision aluminium rings
- Tiffen, the industry leader in filters, proudly manufactures its filters in the United States


Specifications