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The following opinions have been automatically translated with Google Translate.
  | sent on 17 Gennaio 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... |
  | sent on 16 Gennaio 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. |
 | sent on 24 Giugno 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. |
 | sent on 24 Giugno 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? |
  | sent on 24 Giugno 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. |
 | sent on 02 Maggio 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. |
 | sent on 14 Febbraio 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! |
 | sent on 02 Ottobre 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 |
 | sent on 28 Giugno 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. |
 | sent on 27 Giugno 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. |
 | sent on 22 Novembre 2022 Pros: Quality professional optics with impeccable, robust and waterproof construction Cons: nobody Opinion: A lens of the highest build quality, it represents the II version marked OM System of the glorious 12-40 f/2.8 Olympus. The only difference of the 12-40 PRO II compared to the first series is the waterproofness with weather resistance by IP53 certification. Although the optical scheme is identical to the first version (2013 project), the PRO II (2021 project) returns an image improvement but almost imperceptible (I also had the first series and I did not notice major differences). A lens released in combination with the new OM-1 and the results I obtained on the OM-1, is probably designed specifically for the new camera and for the subsequent marked OM System. In conclusion, for those who want to save the first version (2013) of the 12-40 f / 2.8 in the used market is at affordable prices, for those who want to keep up with the times and have the new 12-40 PRO II marked OM System can find those sold by kits with excellent discounts. The choice is yours... |
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