Olympus's f/1.2 PRO normal prime — same as OM System ID 1731, original Olympus branding.
The Olympus M.Zuiko Digital ED 25mm f/1.2 PRO is the original Olympus-branded version of the fastest AF normal prime for Micro Four Thirds — providing 50mm equivalent at f/1.2 with PRO-grade IP53 weather sealing and freeze-proofing.
Same outstanding optics as OM System ID 1731 — one of the sharpest MFT lenses ever made at any aperture. The f/1.2 on MFT provides approximately equivalent DOF to f/2.4 on full-frame — meaningful subject separation for the system.
Micro Four Thirds mount with 62mm filter thread at approximately 410g. IP53 weather sealed and freeze-proof to -10°C. MSC AF motor — fast and quiet. Manual focus clutch ring for instant MF switching. 30cm minimum focus distance.
Available used at professional prices. Functionally identical to OM System ID 1731 — just different branding on the barrel. The f/1.2 PRO trio represents MFT's finest optical achievement. For MFT photographers demanding the absolute best normal prime.