
If there’s a filter that stays on the end of my favorite lens more often than not, it’s a warm diffusion filter. But compact cameras are a bit harder to outfit with filters, which is why the Ricoh GR IV HDF has one built right in.
The specs on the Ricoh GR IV HDF are a near-identical match for the camera without the HDF in the name. The key difference? Ricoh included a built-in HDF filter that can be turned on and off with a press of a button to create softer blooms of light and taper that modern camera sharpness.