Released in August 2025

Ultimately compact, lightweight, and high-resolution An M.ZUIKO PRO lens that combines light weight and high resolution. Mount: Micro Four Thirds mount. Focal length: 12-45mm (equivalent to 24-90mm in 35mm format). Maximum aperture: F4.0. Filter diameter: 58mm / [ED1245MMF40PROOM] ED1245MMF40PROOM Released in August 2025
Unbelievable portability This is the world's smallest and lightest* fixed F-stop standard zoom lens. Its excellent portability means it can be easily stored in your everyday bag or carried around with the camera hanging from your neck, making shooting a breeze. *As of February 12, 2020, this is the standard zoom lens with a fixed maximum aperture.
The compact and lightweight M.ZUIKO DIGITAL ED 12-45mm f4.0 PRO system measures approximately 113.3mm in length and weighs approximately 668g when mounted on an OM-D E-M5 Mark III. Compared to a full-frame mirrorless camera equipped with a standard zoom lens covering a similar focal length, this system is approximately 70% smaller and 62% lighter.
Dustproof, Weatherproof, and Freeze-Resistant: With nine sealing points, the lens is dustproof and weatherproof. When paired with a dustproof and weatherproof camera, you can capture high-quality images with peace of mind, even in harsh environments.
High-Speed ​​Focusing: The focusing lens has also been made compact and lightweight to enable speedy autofocus. When paired with a camera equipped with a high-performance AF system such as the OM-D E-M5 Mark III, you can focus quickly and accurately on moving subjects. High Resolution: Advanced optical technology combines compactness and light weight with high image quality. It delivers high resolution at all focal lengths, from 24mm to 90mm (35mm equivalent). Lens Configuration for Sharp Images: This lens inherits the basic optical configuration of the M.ZUIKO DIGITAL ED 12-40mm f/2.8 PRO, renowned for its high resolution. By strategically positioning special lens elements such as Super HR, DSA, and ED lenses, it achieves a compact design and delivers sharp images all the way to the edges of the image at all focal lengths. ZERO Coating is also applied in appropriate locations to reduce ghosting and flare. Achieves F4.0 Maximum Aperture Across the Entire Zoom Range: This lens achieves F4.0 maximum aperture across the entire zoom range, from the wide-angle to the telephoto end. Since the maximum aperture remains constant at all focal lengths, it facilitates stable exposure even when using the zoom extensively for photography and videography. Bright, Clear Images All the Way to the Edges: Minimized vignetting ensures bright, clear images all the way to the edges.
Excellent Macro Performance The optical design is focused on macro performance, allowing you to get close to your subject and capture impressive close-ups.
Maximum magnification of 0.5x (35mm equivalent) across the entire zoom range. The minimum focusing distance is 12cm at the wide-angle end and 23cm at the telephoto end. The maximum magnification is 0.5x (35mm equivalent) across the entire zoom range, capturing an area of ​​69.2 x 52mm across the entire frame.
Diverse Macro Expressions You can choose between wide-angle macro, which captures a wide background to emphasize the sense of perspective, and telephoto macro, which produces a larger background blur. Enjoy a variety of macro expressions to suit your creative intent.
Supports Depth Stacking Function The camera also supports Depth Stacking, which automatically captures eight images with different focal lengths and combines them to create photos with a deep depth of field, ensuring that everything from the foreground to the background is in focus. [Accessories] - Lens hood LH-61G - Lens cap LC-58F - Lens rear cap LR-2 - Wrapping cloth ■ Specifications ■

Focal length: 12-45mm (equivalent to 24-90mm in 35mm format) Lens construction: 12 elements in 9 groups (2 HR lenses, 1 DSA lens, 1 Super HR lens, 2 aspherical lenses, 2 ED lenses) Water-resistant/dust-proof mechanism: Protection class 1 (IPX1): Provides water-resistant performance when combined with an OM SYSTEM water-resistant body. /Dustproof mechanism installed Angle of view: 84° (Wide) - 27° (Tele) Minimum focusing distance: 0.12m (Wide) / 0.23m (Tele) Maximum magnification: 0.25x (Wide / Tele) Maximum magnification equivalent to 35mm: 0.5x (Wide / Tele) Closest focusing range: 69.2 x 52.0mm (Wide / Tele) Number of aperture blades: 7 (circular aperture) Maximum aperture ratio: F4.0 Minimum aperture ratio: F22 Filter size: Ø58mm Dimensions (maximum diameter x total length): Ø63.4 x 70.0mm Weight: 254g □Manufacturer's warranty period 1 year