Flagship Olympus MFT portrait lens — 90mm equiv at f/1.2 with PRO weather sealing.
The Olympus M.Zuiko Digital ED 45mm f/1.2 PRO is a flagship portrait lens for Micro Four Thirds, providing a 90mm equivalent field of view with an extraordinary f/1.2 aperture. The PRO designation indicates Olympus's highest optical tier, with weather sealing and optical quality that defines the pinnacle of what MFT portrait photography can achieve.
Optical quality is extraordinary with resolution that maximises the potential of MFT sensors and bokeh rendering that rivals full-frame portrait lenses. The f/1.2 aperture produces beautifully smooth background blur with the characteristic MFT depth-of-field equivalent of approximately f/2.4 on full frame — more than sufficient for compelling subject isolation.
Build quality is professional-grade with comprehensive dust, splash, and freeze-proof construction. The lens features a manual focus clutch for instant switching, and the autofocus motor is fast and accurate even at f/1.2 where depth of field is critically thin. The quality of construction matches Olympus's highest standards.
On the used market, the 45mm f/1.2 PRO represents the absolute best portrait capability available for Micro Four Thirds. For MFT photographers who want to push the system's portrait performance to its limits, it delivers results that challenge the assumption that larger formats are necessary for professional portrait work.