The OM System M.Zuiko Digital 25mm f/1.8 II is an updated version of the popular prime lens for the Micro Four Thirds system, officially released in February 2025.
Key Features:
Weather Sealing: The most significant upgrade is the addition of IPX1-rated dust and splash resistance, along with freeze-proofing.
Build Quality: A transition from a plastic to a more durable metal exterior.
Optics: It maintains the classic 50mm (35mm equivalent) focal length. The optical formula (9 elements in 7 groups) remains identical to the original for consistent sharpness and bokeh.
Branding: It is now sold under the OM System brand instead of Olympus.