The last small-sensor GR Digital — 2011's f/1.9 lens and hybrid AF.
The 2011 Ricoh GR Digital IV was the final small-sensor GR: a 10MP 1/1.7-inch CCD behind the 28mm-equivalent f/1.9 GR lens, with hybrid AF that made it the fastest-focusing GRD.
It adds sensor-shift stabilisation, an external AF sensor for near-instant snap focus, a 1.23M-dot LCD, and the interval and bracketing tools the line was known for, in the unchanged pocket magnesium body.
Its significance is closing the CCD era with the best of it: the IV's f/1.9 lens and stabilisation keep it genuinely usable today, and its files retain the GRD's cult monochrome character.
Prices sit above the earlier GRDs for the f/1.9 lens and IS; check stabiliser rattle (normal when off), lens barrel dust, and battery health. The 2019 'GR III' is the unrelated APS-C line — don't cross-shop.