Since making is debut in July of 2019, the Sigma fp has gained notoriety as a very capable camera among its mixed reviews.The decidedly lowercase ‘fp’ is Sigma’s first full-frame sensor. The fp was released the same year that all other major camera manufacturers that aren’t Sony were releasing their first or second full-frame mirrorless cameras, and in typical Sigma fashion, the fp stood out from the crowd. Its certainly doing its part now to popularize the sensor-in-box style form factor that makes so much sensor for video shooters. This design also makes it a great candidate for conversion to Infrared! Sigma cameras have always been on our radar, and not just for the sake of comradery among niche markets, but because Sigma has designed cameras with multispectral use in mind before! The most notable example of this is the removeable IR cut filter found on their foveon SD models that allows them to be shot in IR or full-spectrum without a modification. So, we were naturally very curious about fp’s compatibility with infrared and full-spectrum shooting. The fp does in fact recquire a modification to make it possible, but that’s what we do at Kolari.