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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 858 €;

33 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
OM System M.Zuiko 12-40mm f/2.8 PRO II, buy on Ebay JuzaPhoto contains affiliate links from Amazon and Ebay and JuzaPhoto earn a commission in case of purchase through affiliate links.

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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.

Alabamasmith

sent on January 17, 2026

Pros: Sharpness, construction, ridiculous price if used.

Cons: Poor resistance to flare/ghost in backlight

Opinion: With favorable light it is an amazing optics, for construction and sharpness. The big problem is flares and ghosts that are produced backlight, typical of optics from 10-15 years ago. I then detect a pronounced contrast, which in situations of hard light, is even more perceptible ("closed" shadows). I much prefer less contrasted optics, such as the Panaleica. In short, de gustibus...

GiuseppeDeSantis96

sent on January 16, 2026

Pros: All

Cons: Nothing, maybe a little bit the price

Opinion: This lens, I think is the best lens not only of the micro 4/3 but in general that I have ever had the pleasure of using. From the constructive quality, to the optical performance on ALL focal lengths even at TA. Having a lens of the kind spurs you to photograph every time as if it were the first. Really if you want to find a fault with it, it is that afterwards it is difficult to detach it from the camera, even for excellent fixed lenses. Too bad the price, maybe on the used you can get good deals now, even on the first version.

Marzio Iotti

sent on June 24, 2025

Pros: A lot

Cons: Little

Opinion: I don't want to argue at all, but to call this "a decent kit lens.... with a decidedly economical construction" makes me believe that another lens was used... Or the specimen used by Giorgio_Via must be heavily defective/damaged. I have had and have many lenses for both micro 4/3 and FF, but this zoom has a very high overall quality. My specimen has a qualitative yield, even at full opening, which always amazes me.

Sail

sent on June 24, 2025

Pros: I don't know

Cons: I don't own this lens

Opinion: Small consideration without controversy, I can't understand how a person can say that this lens almost sucks in the face of so many other more than positive judgments. Evidently, either on one side or the other, there are those who shoot. Good thing I only trust my opinion! Often some judgments only serve to feed mental. I will never be able to evaluate the performance of a lens from a technical point of view, I generally look at the photo if I like it or not. Mistake?

Giorgio_Via

sent on June 24, 2025

Pros: good focal range, good sharpness, excellent for both blur and depth of field. Lightweight for hiking and opening

Cons: Awkward flare, certainly not pro construction in the movement of the zoom ring and for the dancing barrel

Opinion: Decent kit lens, although marked PRO does not excel compared to other lenses of the brand. The construction is decidedly cheap, compared to other micro 4/3 lenses such as Panasonic Leica for example. It honestly does its job and, if you find it in kit, it is a good all-rounder. Not to buy if you want an optics to improve. Definitely bad in the flare, forget backlight with sun or lights in the room. The zoom ring (perhaps my sample) is not smooth in scrolling but, above all, the barrel wobbles a bit at full travel. The blur is good and the depth of field is good. I follow my opinion, I emphasize, my opinion, after reading the comments that have followed mine. I have owned and used the lens and I have compared it with other lenses I have had and used, from Fuji to Olympus to Leica. Maybe my judgment is very severe but it must be when a lens is sold as PRO. When I hold a lens made largely of plastic in my hand, I think it is, for the price and for the brand, an unacceptable solution if I want to call it PRO. If I keep the zoom at maximum length and the barrel moves, I do it with all the zoom lenses I've had, Sony Zeiss, Panasonic Leica, I can't accept it, I repeat, for the brand and for the cost and for the PRO definition. The flare is present, too present, maybe in certain photographs it is irrelevant, I think it should be said though. Finally, as far as kit lens goes, as a matter of fact, my OM-1 was purchased in kit form with the 12-40mm f/2.8 PRO II.

There are 7 more reviews. Show all »

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

The Heart of Music: Family and Melody

by Pop Csaba
32 comments, 2961 views [editors pick]

HI RES 16.4 MP

Night in Capena (Rm) #2

by Claudio Ricci
112 comments, 2083 views

HI RES 30.0 MP

Urban Planning of Abruzzo

by Claudio Ricci
106 comments, 3251 views

HI RES 30.0 MP

Night in Capena (Rm)

by Claudio Ricci
107 comments, 2883 views

HI RES 27.0 MP

Blue Time

by Claudio Ricci
53 comments, 2553 views

HI RES 4.7 MP

Untitled Photo

by Rusei Sebastian
15 comments, 2154 views

Landscape Alta Murgia National Park

by Giuseppe Dipalma
19 comments, 1432 views

HI RES 24.8 MP

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Where Time Stands Still

by Claudio Ricci
94 comments, 2596 views

HI RES 27.0 MP

Cold and lonely evening

by Claudio Ricci
83 comments, 926 views

HI RES 27.0 MP

Pocket Metropolis

by Claudio Ricci
80 comments, 1233 views

HI RES 19.5 MP

The World of the Little Red House

by Claudio Ricci
66 comments, 2335 views

HI RES 27.0 MP

Autumn Alto-Sabino

by Claudio Ricci
87 comments, 938 views

HI RES 27.0 MP

The Last Outpost

by Claudio Ricci
78 comments, 956 views

HI RES 27.0 MP

Love

by Giuseppe Dipalma
25 comments, 1711 views

HI RES 25.1 MP

Innocence Behind a Door

by Pop Csaba
16 comments, 839 views

HI RES 12.7 MP

Today quiet traffic in Milan

by Joseph L.
18 comments, 686 views

HI RES 17.7 MP

The Lady in Pink

by Claudio Ricci
91 comments, 1906 views

HI RES 27.0 MP

Stefy and Kety

by Emilio94
10 comments, 3231 views

HI RES 17.9 MP

Last Supper of Mother-of-Pearl

by Claudio Ricci
83 comments, 2057 views

HI RES 49.9 MP

Dume?ti

by Pop Csaba
17 comments, 750 views

HI RES 24.0 MP

Old hands, new life

by Pop Csaba
12 comments, 669 views

Sabine Nights

by Claudio Ricci
83 comments, 1903 views

HI RES 20.2 MP

Escherian countries

by Claudio Ricci
65 comments, 1879 views

HI RES 30.0 MP

The Kingdom of the Crow

by Claudio Ricci
64 comments, 1512 views

HI RES 30.0 MP

The Village of Farfa

by Claudio Ricci
57 comments, 1278 views

HI RES 27.0 MP

Once upon a time, and there still is

by Claudio Ricci
61 comments, 714 views

HI RES 27.0 MP

A window on the world of yesterday

by Pop Csaba
11 comments, 591 views

HI RES 11.6 MP

Gyula 2024

by Pop Csaba
10 comments, 1038 views

HI RES 9.8 MP

Scent of mint

by Claudio Ricci
79 comments, 1836 views

HI RES 30.0 MP

The two appearances

by Claudio Ricci
71 comments, 801 views

HI RES 49.9 MP

Two Hearts and a Digger

by Claudio Ricci
57 comments, 2113 views

HI RES 6.8 MP

Valley of the Princes - Gressoney Valle D'Aosta

by Luca24
27 comments, 1953 views

HI RES 20.2 MP

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Pangong Tso

by Alexdinorma
14 comments, 706 views

The Last Light

by Claudio Ricci
58 comments, 1855 views

HI RES 4.7 MP

We alone

by Joseph L.
18 comments, 359 views

HI RES 16.1 MP

The shepherd

by Pop Csaba
4 comments, 932 views

HI RES 15.5 MP

Joints of Abruzzo

by Claudio Ricci
45 comments, 1240 views

HI RES 30.0 MP

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

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Reviews

What do you think about this lens?

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