The Olympus 12-45mm f/4 PRO has excellent performance and should be more than enough for almost every application including landscape, portrait, and even wide-angle widlife (assuming the wildlife doesn’t want to eat you).

The standard zoom has much merit, saving us changing lenses constantly and offering a versatile set of focal lengths. The focal length is a vital aspect and here the usefulness of have that ultra-wide 12mm (24mm-equivalent) cannot be underestimated.

Very good sharpness at wider apertures, Excellent flare control, Very low distortion, Well-controlled CA, Fairly priced, Very light and compact, Weather sealed, Beautifully made

Diffraction takes edge off sharpness at small apertures, f/4 aperture may not suit some applications

A compact zoom for Micro Four Thirds cameras

Outstanding optics, Compact, all-weather build, 1:4 macro magnification, Metal exterior, Minimal focus breathing

Not stabilized, Not as bright as F2.8 zooms, Omits manual focus clutch

Introduction; Size and weight; Livin' la Bokeh LoCa; Sunstars; Sharpness; Compared to the Panasonic GX 12-35mm F2.8 II; Minimum focus distance; Conclusion;

Introduction; Size and weight; Livin' la Bokeh LoCa; Sunstars; Sharpness; Compared to the Panasonic GX 12-35mm F2.8 II; Minimum focus distance; Conclusion;

The Olympus M.Zuiko Digital ED 12–45 mm f/4.0 PRO is a very well-put-together lens and an excellent addition to the system. If you buy a Micro 4/3 camera nowadays you are really spoilt for choice when it comes to standard zoom lenses.

solid, sealed casing,, excellent image quality in the frame centre,, good image quality on the edge of the frame up from the maximum relative aperture,, moderate longitudinal chromatic aberration,, low lateral chromatic aberration,, sensible coma correction,, slight astigmatism,, quiet, fast, and...

very high distortion on RAW files,, noticeable vignetting on RAW files,, performance against bright light should have been better.

Olympus ED 12-45mm F4 Pro is a Fixed aperture Auto Focus (AF) Standard Zoom lens with FourThirds max sensor coverage, and it is designed to be used with MFT cameras. What type of photography is the Olympus ED 12-45mm F4 Pro lens good for?

Weather-sealed, Autofocus, Hood supplied, Fast Aperture at Tele end, Constant f4 aperture throughout the range, High Max Magnification ratio of, 0.5x, Minimum focus distance of, 0.12m / 4.7 inch, Lens Extends while zooming

Weather-sealed, Autofocus, Hood supplied, Fast Aperture at Tele end, Constant f4 aperture throughout the range, High Max Magnification ratio of, 0.5x, Minimum focus distance of, 0.12m / 4.7 inch, Lens Extends while zooming

What does this mean ?