Chapter 4 – Digital Infrared Photography – Advantages – Sensitivity

Advantages over film photography

As with any type of photography, there are many advantages to choosing digital rather than film. In this section, we are going to look at some of those advantages, as well as learning more about lenses and filters.

Sensitivity

Most digital cameras have a limited range of sensitivity to infrared light. This is because of a filter placed over the sensor designed to block infrared light from reaching it.

This special type of filter is called a hot mirror filter. It reflects infrared light whilst allowing visible light to pass through. Although this effectively prevents digital IR photography, there are a number of workarounds detailed in this chapter; the main method is to remove the hot mirror but there are other options.

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