False color images can also be acquired using dedicated filters, such as the XNite BP1 (images obtained with this filter are often labeled as BP1). However, this approach is generally not recommended. The XNite BP1 transmits visible light approximately in the 350–660 nm range and infrared radiation above ~800 nm, allowing it to function as a simplified alternative to the IRFC method, albeit with significant limitations.

Digital color cameras employ CCD or CMOS sensors whose photosites are inherently broadband and cannot distinguish wavelengths. To produce color images, they rely on a color filter array (CFA), which separates incoming light into red, green, and blue components. Importantly, the CFA is largely transparent to near-infrared radiation, meaning that infrared transmitted by the BP1 filter is detected by all three types of photosites.

Because the BP1 filter cuts off most of the far-red portion of the visible spectrum, the signal recorded in the red channel is dominated by infrared radiation. As a result, the images produced with BP1 can resemble IRFC images, since they combine visible and infrared information and can still differentiate materials with different infrared reflectance.

However, compared to standard IRFC imaging, the BP1 method is less effective. Infrared radiation is not confined to a single channel but contributes to the red, green, and blue channels simultaneously, reducing the ability to generate distinct and diagnostically useful false colors for different pigments.

The main advantage of the BP1 approach is its simplicity: no post-processing is required, making image acquisition significantly faster. For this reason, it can be particularly useful for the rapid documentation of large artworks, such as wall paintings, where full IRFC processing may be impractical or time-consuming.