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OM System M.Zuiko 12-40mm f/2.8 PRO II : Specifications and Opinions

The OM System M.Zuiko 12-40mm f/2.8 PRO II is a standard lens for 4/3, manufactured from 2022. The focus is done by Stepper Motor, it does not have image stabilization. The average price, when it has been added to the JuzaPhoto database, is 823 €;

26 users have given it an average vote of 9.8 out of 10.

MOUNT

This lens is available with the following mounts:

Micro 4/3: this lens is compatible with mirrorless micro-4/3.

Specifications
Focal lenght	12-40 mm
Angle of view	84 - 30.2° (equivalent to a 24-81mm in Fullframe 24x36mm format)
Format	4/3
Max. aperture	f/2.8
Aperture blades	7
Lenses/Groups	14 elements in 9 groups
Min. focus distance	0.20 meters
Reproduction ratio	0.30x
Features
Zoom type	Ring, external
Stabilization	No
Focus	Stepper Motor
Internal Focus	Yes
Built and notes
Tripod ring	No
Extenders	No
Filters	62 mm
Lens hood	Yes, supplied
Weather sealing	Yes
Weight	382 g
Dimensions	70 x 84 mm
Buy
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Reviews

What do you think about this lens?

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The following opinions have been automatically translated with Google Translate.

Fabiosestu.photography

sent on May 02, 2025

Pros: Exceptional construction, ring to switch from automatic to manual focus, top sharpness!, very bright

Cons: personally I can't find any, maybe slightly big for me who has an OM-D EM-10 Mark IV

Opinion: It's a really gorgeous lens, and I honestly wonder how I didn't buy it sooner. The optical quality is excellent: the image is extremely sharp at all focal lengths, with a truly professional rendering. As far as I'm concerned, it's the best lens I've tried to date. The bokeh effect is soft, pleasant and very pleasant, ideal for portraits and isolated subjects. I would like to point out that I also made a direct and in-depth comparison with the Leica 12-35mm f/2.8, a very popular lens, but in the end I decided to choose OM System M.Zuiko 12-40mm f/2.8 PRO II, for the overall performance. Highly recommended for those looking for a versatile and high quality lens.

Basilio Leone

sent on February 14, 2025

Pros: It's a pro lens in every sense

Cons: But please.....

Opinion: A beautiful professional lens comparable and perhaps superior to the best zooms of the most famous brands, and a pleasure to use it on om1/2 system, sharp at any aperture, beautiful contrast, light, patch construction, tropicalized, some say that it is an optical project of a few years ago, adding only the tropicalization, zuiko has always made important lenses destined to last over time, so I don't get attached to this chatter.... Looking at the prints, you realize what this lens is capable of! Good light to all!

Beato Angelico

sent on October 02, 2024

Pros: Constant 2.8 aperture, exceptional construction, tropicalized with IP53 certification, smooth zoom movements, ring to switch to manual focus, customizable button, sharp at all focal lengths and at full aperture

Cons: Chromatic aberrations in backlight, susceptible to flare, a bit disproportionate for small and medium-sized m43 bodies (EM10, EM5, GX80 and GX9), no substantial innovation compared to the previous model (from 2013)

Opinion: I have been using this lens for about a year on an OM-5, purchased during Black Friday for just over 600 euros new. This is the re-edition of Olympus' optical masterpiece with improved weather sealing (IP53 certified). Definitely one of the best choices among the standard zooms for professionals and demanding amateurs who use an m43 kit. The f/2.8 aperture on the entire focal range allows you to use it as an all-rounder, if you do not prefer focal lengths that are too wide or telephoto, starting on the wide side from an equivalent 24mm, very useful. In combination with the stabilization of the bodies, Olympus allows you to shoot serenely even in the evening and indoors, without the need to carry around fixed lenses. In fact, the optical quality is very good throughout the focal range and does not look bad compared to 17mm and 45mm f/1.8, losing some sharpness just at the telephoto extreme. Definitely not a problem if you use the 80mm equivalent for portraiture, a little less recommended the use of the most extreme telephoto focal length for the landscape. The optics are very robust and leave a pleasant tactile sensation during use. The zoom is always fluid and the transition to manual focus via the ring is useful and immediate in certain situations. For those who need it, there is also a customizable function button. It is sold with a lens hood (a bit plasticky) and a lens bag. Moving on to the cons: from an optical point of view there is little to report, there are some chromatic aberrations in backlight and it is quite susceptible to flare, while always mounting the lens hood. Used on the OM-5 it is a bit disproportionate. You get used to it, but you have to keep the pairing with your left hand and you can't shoot with one hand. Surely you lose a bit of pleasantness in use and everything is a bit unbalanced forward. It's probably a lens made more for the OM-1 and not for a leisurely walk with an OM-5. The biggest flaw is that it is a simple re-edition of a 2013 lens, with no substantial optical improvements over the previous version (which I had), nor a decrease in weight and size. In recent years, competitors have managed to re-engineer some lenses, making them lighter and more compact, and it is a shame that OM System is not able to follow this development trend. Vote 9

Fabribrizio

sent on June 28, 2024

Pros: Professional optics in every sense, a valid project from the outset, in fact, taken up by OM for the second version.

Cons: Nobody

Opinion: As I wrote, a valid project from the beginning, in fact taken up by OM for the second version, which optically has practically no difference with the previous one, I had both, never a problem great satisfaction in the rendering of the images, sharp, almost perfect. The value of second-hand! Perhaps it is the only drawback, inexorably devalued.

Claudio Ricci

sent on June 27, 2024

Pros: In some ways it's "the perfect lens". It excels in every aspect. Impeccable.

Cons: Nobody. I would say "that only stops at 80 equivalents", I'm used to larger zooms, but that's not a flaw.

Opinion: Lens completely free of defects and equipped with every possible value. Professional build quality. Flawless results, every time you open it, in every situation, across the entire frame. The only possible bad result is due to the photographer's error. The stabilization of cameras like the OM-1 (where it is supplied as a kit) makes it absolutely versatile, since you can shoot without problems even at 1/2 (if not even a full second) handheld (and even at 80 mm equivalent). Value for money at the highest possible benefit levels. I don't think you can get a lens of this quality at a lower price than what you can find it at. Rating : 10 full, like 13 other users before me, I think it's a lens where it's practically impossible to disagree.

There are 2 more reviews. Show all »

Photos taken with OM System M.Zuiko 12-40mm f/2.8 PRO II

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The sample photos are selected automatically between all photos posted by JuzaPhoto members, using the camera and the lens selected in the techs. If you find evident errors (e.g. photos taken with cameras and lenses that are not available yet), you can contribute to improve the page by sending a private message to the user that has entered incorrect values in the photo caption.

Reviews » Lenses » Lenses Olympus » OM System M.Zuiko 12-40mm f/2.8 PRO II

OM System M.Zuiko 12-40mm f/2.8 PRO II : Specifications and Opinions

Buy

Offerte Usato RCE

Reviews

What do you think about this lens?

Photos taken with OM System M.Zuiko 12-40mm f/2.8 PRO II