Ricoh Imaging Americas Corporation today announced the RICOH GR III HDF and RICOH GR IIIx HDF premium digital compact cameras. These new versions of the acclaimed RICOH GR III and RICOH GR IIIx cameras feature a newly-developed Highlight Diffusion Filter (HDF) that diffuses highlights for softer light, creating more expressive images with a sense of depth and emotion. The HDF, which can be turned on and off in a single action, allows the user to add a totally different kind of visual expression to captured images. Ricoh Imaging Americas Corporation announced the RICOH GR III HDF and RICOH GR I…