Compact / CAMERA REFERENCE

GR IV HDF

Ricoh

First release: 16 January 2026

Announced in December 2025; this calendar entry records the January 2026 first-release date rather than a new 2026 announcement.

The GR IV HDF places a switchable diffusion filter inside the lens assembly. It spreads bright light and lowers contrast without requiring an external filter adapter. That filter replaces the standard GR IV’s neutral-density filter, a useful distinction when choosing between the two cameras.

01 / TECHNICAL RECORD

Specifications

Official specifications checked 4 October 2026. Source: Manufacturer specifications ↗.

Imaging and operation

Sensor: 25.74MP colour CMOS; 23.3 × 15.5mm APS-C
Lens: 18.3mm, 28mm equivalent; f/2.8–16; seven elements in five groups
Sensitivity: ISO 100–204800
Stabilisation: Five-axis sensor shift
Still files: 14-bit DNG RAW and JPEG; maximum 6192 × 4128
Autofocus: Hybrid phase and contrast detection; Snap focus and manual focus
Close focus: 10cm normal; 6–15cm macro
Filter: Switchable Highlight Diffusion Filter; no built-in ND filter
Shutter: Up to 1/4000s mechanical, restricted to 1/2500s at f/2.8; electronic up to 1/16000s Manufacturer ↗
Video: Full HD 60/30/24p H.264 MOV; up to 25 minutes or 4GB per clip
Storage: Approximately 53GB internal; UHS-I microSD/HC/XC
Display: 3-inch touch LCD; approximately 1.037 million dots
Battery: DB-120; approximately 250 photographs under CIPA conditions
Weight: 262g with battery and card; 228g body only

02 / INDEPENDENT COVERAGE

Reviews and field reports

Independent review

Digital Camera World · GR IV HDF review ↗

During two weeks with a LensRentals loan camera, Grigonis liked the HDF’s softened highlights and the sharp lens when the filter was disabled. She found autofocus improved over the GR III HDF, but moving subjects remained difficult. Limited video features and the missing viewfinder were other compromises.

Hillary K. Grigonis · Digital Camera World

03 / PROVENANCE

Sources and dates

Announcement and first-release dates are labelled separately; availability can vary by market. Specifications can vary by region, firmware and recording mode; use the linked manufacturer documentation for those conditions.

Archive updated 2026-10-04. Archive coverage and dataset credits →