Ricoh GR III HDF Digital CameraIncorporating a newly developed highlight diffusion filter (HDF), the Ricoh GR III HDF allows users greater control over the style of their imagery while maintaining exceptional image quality. Captures with HDF enabled are noticeably softer and feature an emphasize on highlights, resulting in a more nostalgic look that resembles film photography or vintage movies. The default setting of the Fn button is to turn HDF on or off. This model also features