How do you design a flash diffuser that is not prone to underexposing images? You must first assume that the techniques that work in the studio, do not work on location where your light source, in this case, may be only your comparatively underpowered speedlight, and where carrying a large softbox type diffuser atop your speedlight is not only impractical due its size but, is also unacceptable due to its intrusive appearance. What was needed was a flash diffuser that would scatter light in only one general direction (the direction the camera is facing), thus, making effective use of that light. What was also needed was a diffuser that could be folded upon itself when not in use, and quickly unfolded to deliver quality light without being hindered by underexposure caused by the diffuser itself.

      The ProFusion flash diffuser was designed to free photographers from the headache of premature light fall-off, which plagues other flash diffusers and frustrates photographers. What sets the ProFusion apart is its ability to throw that light much farther than other diffusers, and it’s ability to fight light fall-off to an unmatched degree. This breakthrough allows photographers to concentrate on other aspects of their craft, while being assured that their light output is not just diffused, but also of ample power.

      To achieve diffusion, the ProFusion doesn't simply bounce light off of a surface, or direct light through a semi-opaque material, it utilizes several different known techniques to diffuse and soften light. The use of multiple techniques to diffuse light, instead of only one, is what sets the ProFusion flash diffuser apart from it's competitors.

      The first of which is simply to "scatter" the light from a flash of speedlight. An in-depth and helpful article about scattering light can be found on the Wikipedia page on scattering. The illustration above depicts how the ProFusion scatters and directs light forward, making efficient use of the relatively small amount of light produced by a flash/speed light.

Another unique design aspect of the Profusion is its side scatter abilities through the use of its side bounce panels. These side bounce panels afford photographers an unprecedented amount of control over not only the amount of light they desire to reflect forward, but also it's direction. The side bounce panels are mounted on hinges that allow the photographer to choose the intensity and direction of their light. The back bounce panel, also mounted on custom friction hinges, further affords the photographer control over his/her light. The snoot, also mounted on a custom friction hinge, allows the photographer to choose whether or not they wish to first bounce the light backward onto the back and side bounce panels before sending the light forward onto the subject.       The back and side bounce panels, when used in conjuction with the snoot give the photographer a totally unmatched degree of control over the amount and diection of their light.