GR IV HDF reaches Japan on January 16 after its December announcement

The soft-highlight GR IV variant was formally announced in December 2025 before its January 2026 Japanese release.

By RicohRumors · Published 16 Jan 2026 · 1 min read

GR IV HDF官方资料图 — Image credit: RICOH IMAGING COMPANY, LTD. · 官方资料图；未发现开放许可声明，使用须保留来源并遵循权利方条款。 · Source and license

The Ricoh GR IV HDF’s Japanese release date is January 16, 2026. Ricoh formally announced it on December 17, 2025, making this a cross-year retail launch rather than a first announcement in 2026.[1][2]

HDF stands for Highlight Diffusion Filter. This version replaces the standard GR IV’s ND filter with HDF, spreading highlights for a softer rendering. Photographers can switch the filter to change the image style. A silver-gray shutter button distinguishes the exterior, and the default Fn assignment controls filter switching.[1]

It retains the GR IV’s approximately 25.74MP APS-C architecture and 28mm-equivalent F2.8 lens, while supporting an electronic shutter up to 1/16000 second. The date here applies to Japan; availability and purchasing arrangements vary by market.[1]

Sources

[1] https://news.ricoh-imaging.co.jp/rim_info/2025/20251217_041527.html

[2] https://www.ricoh-imaging.co.jp/japan/products/gr-4/special/hdf/