Okay let's get this straight, this lens is spot on, it's quality and build is second to none, the optics are faultless and coupled with a good camera and a user with a bit of know how then it won't fail you and will give you the results you are after time and time again ...

This was my xmas present to myself bringing my new OMD-1 into the same league as my beloved E-5. Another amazing lens from the Olympus stable to complement my equipment. Beautiful sharp focus every time even in very low light. Brilliant!!

And Manual Focus Too; Consistent Output; Durable; Easily Interchangeable; Quick Focus; Rugged; Sharp Focus; Strong Construction

Heavy

I pre-ordered this lens with convertor when released. I only occasionally use the converter. Even though I've scratched it (a bit), I have never regretted the purchase for a moment. . Want a close shot of something small and timid This is as good as it gets. .

Sharp, fast focus, the closest focus of any such lens; Great hood, rain impervious, good into the light; Compatible with focus stacking and other EM-1+ or EM-5mk2+ advanced features

IQ falls off a tad with the converter attached

If you shoot with a Micro Four Thirds CSC, the Olympus 40-150mm f/2.8 PRO M.ZUIKO is ideal for wildlife, portrait and action photographers. It's the second lens to join the Olympus PRO series alongside the 12-40mm f/2.8 wide-angle (￡799).

I previously owned this lens when using Olympus and then switched systems only to return and purchase it again. This focal length is so useful and at a constant f/2.8. It also works very well for portraits.

The Olympus M.Zuiko ED 40-150mm f/2.8 PRO is, mostly, a highly desirable lens - except for one bug. On the positive side, it is very good if not excellent in the primary image quality metrics. It is very sharp across the focal length range including some greatness in the middle portion.

With the M.Zuiko 12-40 f2.8 PRO and the MC-14 converter, we have 24-420mm equivalent in a really small package. Paired with the Olympus E-M1 is a top quality equipment.

Weatherproof, all metal, manual focus clutch, f2.8 constant, fast and acurate focus, very interesting lens hood, image quality, very good zoom range; In general, optional MC-14 teleconverter, top quality Olympus lens and corrrect price for the quality

A little heavy (800g) and big (f2.8

Regular 'consumer' zoom lenses have a variable maximum aperture, but pros demand a constant f/2.8 lens with consisting top-drawer performance – and Olympus has produced exactly that.

I was looking for a mid telephoto and had difficulty choosing between the Olympus 40-150mm f2.8 and the Lumix 35-100 2.8. Both are fantastic lenses. In the end it comes down to which is more important, the longer reach of the Olympus (and having the option of using the MC-14 teleconverter) vs having...

The bundled lens hood has been marvelously designed to collapse back onto the lens for easy storage. When extended, the locking mechanism will fully support the weight of the lens and camera body. And to keep your investment safe, the bundled lens pouch will help protect against dings and scratches