The lens construction of the new M.Zuiko ED 12-45 mm F4.0 PRO is similar to the proven ED 12-40 mm F2.8 PRO. The effective placement of special lenses is the basis for the world's lightest and smallest construction with a focal length of 24 to 90 mm (35 mm equivalent). The focusing lens, which is also small and lightweight, provides fast and precise AF for capturing any subject. The housing is dust, splash and frost proof and sealed in 9 places.

Aspherical lenses and the ZERO (Zuiko Extra-Low Reflection Optical) coating, which provides clear imaging performance, reduce aberrations, ghosting and reflections. Light loss at the edges of the image is suppressed. This results in high-resolution images with perfect imaging performance right to the edges. Since the aperture value remains constant over the entire focal length, exposure is easily controlled when zooming and recording video.

The M.Zuiko ED 12-45 mm F4.0 PRO is also suitable for macro photography with a maximum magnification of 0.25x (35 mm equivalent = 0.5x) over the entire zoom range. The close-up limit is 12 cm (wide angle) and 23 cm (telephoto).
Focus stacking is also possible. This function takes several consecutive images with different focus areas, which are then stitched together to form an image with a large depth of field.