The AR12 is a 12 inch Beautydish reflector that has a center deflector that blocks the light coming directly from the flashtube. That creates a softer looking image without the normal specularity of a small flash.
In addition to being 12 inches across the front and thus more than four times bigger than the normal reflector, it also includes a cloth diffuser for an even softer look.
Lastly, a grid is included that snaps into the front of the reflector and limits the light output to less than 50 degrees.
The AR5K is the normal size as we have used for all of these years which is five inches across. This reflector is black on the outside with a shiny silver finish inside. The kit includes a grid to keep the angle limited to about 40 degrees. A simple plastic diffuser cover is also included.
The small ARSG Snoot fits over the Lumedyne flashtubes where the reflector normally mounts and tightens into place like any other reflector. It has a narrow opening for the light to escape at the open end. In addition to this limited field of view, the beam of light can be further limited and controlled with the small grid that fits the end of the snoot.