I have not had this 12-40 pro for long now, but I can say I love it so far. Only complaint is the weight. Sharpest lens I have ever shot with! You can feel the quality just holding it. Start clicking the shutter and you will see the quality.

Great and excellent lens! Should have bought sooner. Very pleased!

The lens is amazing, I can't think of one flaw. Pictures are tack sharp. A total must-have. The range is super flexible and with its 2.8 aperture you can even use this indoors with no issues.

I bought this lens for the new OM-D E-M1 Mark III. I am upgrading from my old E5 where I was using 7 different four thirds lenses. This lens is a must have for me moving to the lighter, more compact OM-D system. Easily replaces 3 of my old four thirds lenses to light the load. Quality build and the performance is outstanding. The 12-40mm F2.8 Pro lens truly allows me to break free with Olympus!

This lens is like a bag of primes and the best wide-normal zoom I ever owned across three different systems. Build quality and IQ is superb with a great manual focus clutch ring. 0.3x close focus magnification is extremely useful and one of the things that sets many Oly Pro lenses apart from other brands. Mates perfectly on a EM1 body. Highly recommended