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M.Zuiko ED 12-50mm f3.5-6.3 EZ

SKU# V314040BU000-410-base

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This compact Electric Zoom lens has a maximum magnification of 4.2X, covering a range that extends from a wide angle of 24mm (35mm camera equivalent) - ideal for taking wide shots even indoors - to a medium telephoto focal length of 100mm (35mm camera equivalent), - optimal for portraits. There are two technologies within this lens that make it particularly well suited to shooting video; the Auto Focus system utilizes Olympus’ MSC (Movie & Still Compatible) mechanism that employs a newly developed linear motor drive that enables faster, quieter focusing, and a newly developed motorized zoom mechanism that delivers quiet and smooth zooming. You can even remotely control the Electric Zoom function using Olympus’ free O.I.Share smart device app when mounted on a Wifi enabled Olympus camera body. And although the 12-50mm features electric zooming operation, it can also be switched to a traditional mechanical zoom mode by simply moving the Zoom Ring to the mechanical zoom mode position.

And more, when the Zoom Ring is moved to the forward-most position it activates the Macro mode allowing close focusing down to 8 inches with a maximum image magnification of .72X. A “Status” window built into the body of the lens shows at a glance which mode is engaged. A lens “FN” or function button can be customized just like the function button on a camera body allowing quick access to frequently changed settings. How about Durability? This lens features Olympus’ Dust and Splash-proof construction, so when it is matched with a Weatherproof OM-D body, rain, wind or snow won’t interfere with your photography. An optional dedicated bayonet attachment LH-55C Lens Hood handles harsh or stray light from causing aberration and doesn’t interfere when fitting a lens filter.

Item # V314040BU000

Lens Architecture


Mount Standard Micro Four Thirds System Standard
Focal Length 12-50mm (35mm equivalent focal length 24-100mm)
Lens construction 10 Elements in 9 Groups
- DSA lens, 2 Aspherical lenses and ED Lens
Angle of View 84 - 24 Degree
AF System High-speed Imager AF (MSC)
- Linear Motor Drive System
Closest Focusing Distance 0.35m (at Normal Mode)
0.2m (at Macro Mode)
Maximum Image Magnification 0.36x (at Normal Mode)
[0.72x (at Macro Mode)]
Minimum Field Size 36 x 48mm
Number of Blades 5 (Circular Aperture Diaphragm)
Maximum Aperture f3.5(12mm) - f6.3(50mm)
Minimum Aperture f22
Filter Size Diameter 52mm
Dimension Diameter 57 x 83mm
Weight 211g
Box Contents Lens Cap (LC-52C), Lens Rear Cap (LR-2), Instruction Manual, Olympus Worldwide Warranty Card

Review Summary for the M.Zuiko ED 12-50mm f3.5-6.3 EZ






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Customer Reviews of the M.Zuiko ED 12-50mm f3.5-6.3 EZ

July 14, 2015


decent all around

Like most of the reviews have stated, the lens is a tad slow, with a max aperture of f/6.3 on the long end. It doesn't really bother me though, since I tend to mostly shoot landscapes at f/8 anyways. It's versatile, and the macro mode comes in handy once in a while.

What bothered me the most is the lack of a true manual focus, when you flick the ring to manual focus mode, it's actually focus by wire, with no distance markers. So it's not useful for the star photography that I like to do once in a while. But it's not a big deal since you'd probably want a faster lens for that anyways.

April 16, 2015


A good all purpose lens

I got this lens as a kit lens bundled with my EM-5. All in all it is a good lens.

Good things about it:
1. It is a durable lens, weather, splash and dust proof is a great feature. I had some chances taking photos in a super snowy winter night, with this lens, I am worry free. Although focus get a little slow when it is very cold.
2. It changes the focal length internally, so unlike some other wide range lens, the 12-50mm lens won't screw in and out when you change the focal length.
3. It has a Macro function. Well it is not the real Macro, but it is interesting enough. I really like that when I feel like using a Macro lens but don't have to change the lens for taking a few photos in the field.
4. It has 12 mm to 50 mm focus length. So if you don't want to bring too many lens with you for a travel, this is the one you could bring with. It can covers almost everything for the travel.

Some things I wish it has:
1. Larger aperture. When it is darker or you are indoor with not so much light, even with the powerful 5-AXIS from my EM-5, the picture still gets blurred.
2. Get Shorter in size. It is still a little too long for my EM-5, which make it looks a little special. It also make the whole package not very mobile because of the big lens.

April 10, 2015


So Soft... Prime It

I have tussled with this lens for about a year. My best photos have yet to come from this lens as hard as I try. It is just too slow, not sharp enough, and not very ergonomically pleasing due to it's length. I am considering switching to the 45mm f/1.8 or the 12mm f/2.0 primes to try to gain in speed and sharpness. This lens helped me test focal lengths to narrow down my decision on what lens to buy. Right now, my best shots almost exclusively come from my 25mm Panasonic 1.8.

Overall this lens just lacks too much in contrast and sharpness. My panasonic 25mm has set the bar for the kind of contrast and sharpness I want. It's hard to choose another lens after this.

The plus of this lens is that it's sealed and has a lot of buttons to play with like the function button, the digital zoom and the macro function. Overall, I regret buying this lens, but even from this lens, I have a learned a lot more about photography. The conclusion is that for the m4/3 cameras, you will just need a faster lens than this to feel satisfied with the results. The only way to even get an in-focus low light shot, you have to crank up the ISO manually. Even after that, it's rare that you would ever like something in hand-held low light conditions from this lens, which makes things extremely frustrating as you miss street scenes that you would have easily captured with a better lens with the same focal lengths. The macro is the best feature on this lens, but I am not into macro photography very much, and I am sure if I were, I would want the Oly 60mm instead.

April 03, 2015


Great, but a tad slow

This is one misunderstood lens. A good performer overall, with slight soft corners wide open, but still a stellar lens stopping it down a bit. But I don't really care for stopping down a lens, specially this one, since is so slow, so I most of the time shoot wide open, unless I'm taking Macro, which can indeed benefit from the added depth of field. Speaking of Macro, it's in really very usable, and images are very sharp and contrasty. Power zoom is great, and the fact that the front element neither rotates nor increases in length when focusing of zooming, makes it a very nice video lens. And you still have the option of flipping back the ring for manual zoom, although I don't use it very often. It might impact battery life a bit, though, and I haven't tested that particularity too much, but is good to take it into account when you are far away from a power outlet.
Weather sealing is a welcomed bonus.
Overall a winner that finds a place in my camera bag, and use it very often when light conditions permit. And if not, IBIS always comes to rescue me and save the day.
Highly recommended.

March 27, 2015


Great all-around lens!

I got this lens with my OM-D E-M5 body, and it is the lens that I use most often, even after purchasing several other lenses. It is handy to have the built-in macro to grab an unexpected shot, and the zoom range makes it a very versatile lens. The power zoom option works great for video, when you want a smooth & steady zoom. Otherwise, I always use the "manual" zoom for faster composure of still pictures. The lens is rugged, too! I slipped while hiking and slammed the lens into a rock when I fell. It dented & shattered the filter I had on the lens, but the lens itself is still working perfectly after many more months of use. This is the lens I leave on my camera for the majority of use, and the only lens I use when I don't want to carry any other lenses with me.

March 25, 2015

Manish Vanjara

Very nice weather sealed lesn with macro capabilities

This lens covers a very userful 24mm (35mm equivalent) to 100mm focal length. This focal length is ideal for most photography. Being weather sealed helps. Keep in mind that you need a weather sealed body as well such as the EM5 or EM1.

There is a macro mode which is surprisingly good. I have captured some really nice macro photos with this lens.

While this may be an ok kit lens for still photography, it does shine for video as it has almost silent operation and very smooth zooming action.

While not the sharpest kit lens in the micro 4/3rd family, it is still a very good performer and much better than the kit lens offered in other systems.

This lens has become a part of my lens I carry lens due to its capabilities in both focal length as well as macro. Yes I shoot RAW and have to do some post processing to obtain the best results. However this lens has delivered good results.

I would recommend this lens to a friend due to its excellent focal length and macro with a caveat that some post processing may be required to make the images pop.

January 27, 2015


Much more than just a kit lens

The OM-D E-M5 was my first serious foray into digital from fifty years in film, much of if with Olympus OM and Leica M. Olympus choose wisely in kitting their revolutionary EM-5 with this multi-capable lens. Yes, it has been superseded by its bigger, faster, much more expensive pro brother, the 12-40 f2.8. But by how much? This little lens remains a compact, quick and quiet, sharp, wider range optic, with macro capability to boot. I took it of a trip to Kenya with the 70-300, and they both served me very well. It's still in my regular kit, which now includes an EM-1. Maybe it should be in yours, too.

January 12, 2015


A bit too much kit in one lens

Had one that came with my E-M5. Unfortunately, no longer use it for anything.

This is a sort of classic case of a jack-of-all-trades lens. It does a bit of everything. Macro, wideangle, short-telephoto, manual & electric zoom, weatherproofing, relatively low price.

Unfortunately, there are quite a bit of drawbacks to this lens design. My first annoyance with it is the electric and manual zoom is much too easy to switch back and forth between. I often find myself twisting the zoom ring, only to get a few mm of travel because I inadvertently moved the ring forwards (or was it backwards?) I know it makes for a better video-centric design to have the option for both, but it very confusing the way it it implemented here. I would have just picked one or the other.

Another drawback is the very slow aperture at 50mm, which forces a higher minimum ISO when lower is needed to handle camera shake, and also removes the ability to achieve a shallow DoF often desired at this FL.

The lack of sharpness from this lens is also a disappointment, where even the other standard kit zoom lenses perform better, short of the 12mm wide-angle that this one has (others start at 14mm).

It's also a fairly lengthy lens, and not at all in the spirit of a compact system from m4/3.

I would say that casual HD video is the main purpose of this lens, but that's not exactly a great thing to state. Anyone with a planned production in mind would not use a lens like this.

The only other thing I can say is that this is a decent, but not great low cost weatherproof lens for those on a budget. But if you're on a budget, it is doubtful you have a weather-sealed camera to go with it.

Or many you just want one lens, even if it's only so-so because changing lenses is a pain. That begs the question of using a camera with interchangeable lens capability from the excellent high end point and shoots now available.

There just isn't a particular set of realistic circumstances where I can state that this lens does it best, and that is why it remains an unpopular choice.

Well, at least the build quality of mine was fine, and the lens works okay. That's about all I remember of it.

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