I stumbled upon a fellow photographer, whether out of mere curiosity, a flaunt of riches or the spirit of adventure I don't know, who has the guts and skills to tailor-made a camera for IR photography. This time, a GXR S10 module was unscrewed.
Note a photo in the middle of the his post which compares the thickness, or thinness to be exact, of the S10's low-pass filter to the one cut from other cameras of his. The low-pass filter minimises the loss of lights. The comparison shows that Ricoh's effort in improving the quality of the final images.
The resulting photos are shown in the lower part of his post.