OM System V335560BW000

The OM System MC-14 is a 1.4x teleconverter for select Micro Four Thirds PRO lenses. It adds 40% more reach while preserving weather sealing, and it costs about 390 USD. If you own the 40-150mm f/2.8 PRO or 300mm f/4 PRO, it's an easy buy.

In our database, the MC-14 scores an 89th percentile for macro performance, which is surprising for a teleconverter. It lets you get closer to small subjects without physically moving, and the minimum focus distance of 150mm stays workable. Build quality is also a standout at the 86th percentile. This thing feels like a solid chunk of machined metal, and it clicks into place with zero wobble. The weather sealing is genuinely reassuring if you shoot in nasty conditions.

Optically, the MC-14 sits at the 19th percentile, which sounds bad until you remember what a teleconverter does. It magnifies the image circle, so any softness or aberration in your base lens gets enlarged too. On the 40-150mm f/2.8 PRO, the results are still sharp enough for most work, but pixel peepers will notice a slight drop in contrast and edge sharpness. Autofocus takes a small hit as well, landing at the 54th percentile. It's not slow, but it's not as snappy as the bare lens. For perched birds or slow-moving subjects, it's fine. For erratic action, you might miss a few shots.

The MC-14 doesn't have many direct competitors because it only fits OM System lenses. But if you're shopping for reach on Micro Four Thirds, you'll see the Panasonic Leica DG Vario-Elmarit H-ES12035 as a high-end standard zoom, not a teleconverter. The Sigma Contemporary 16-300mm f/3.5-6.7 DC OS and Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD are superzoom lenses for other mounts, so they solve the reach problem differently. You'd need a different camera body to use them.

Within the OM System ecosystem, the real comparison is between adding the MC-14 and buying the 100-400mm lens outright. The 100-400mm gives you more range and better optical quality at the long end, but it costs significantly more and weighs a lot more. The MC-14 plus the 40-150mm PRO is a compact, weather-sealed combo that covers most telephoto needs. If you already own the 40-150mm, the converter is the smarter buy. If you need serious reach beyond 300mm equivalent, save up for the 100-400mm instead.

At 390 USD, the MC-14 is priced like a premium accessory, and for owners of the 40-150mm f/2.8 PRO or 300mm f/4 PRO, it's an easy recommendation. You're essentially getting a second lens for a fraction of the cost. Compare that to buying a dedicated 300mm or 400mm prime, and the math works out fast. The Panasonic Leica DG Vario-Elmarit H-ES12035 is a different beast entirely, a standard zoom, so it's not a direct rival. But if you're on a budget, a used 100-300mm zoom might get you similar reach for less money, just without the weather sealing and PRO build quality. For the right person, the MC-14 pays for itself the first time you don't have to crop half your frame away.

The OM System MC-14 is a 1.4x teleconverter for Micro Four Thirds cameras, and it's one of those accessories that quietly makes your existing glass way more useful. It slots between your camera body and lens, adding 40% more reach to select OM System PRO lenses. At around $390 USD, it's not pocket change, but it's a lot cheaper than buying a whole new telephoto lens. The MC-14 is built for the 40-150mm f/2.8 PRO, the 300mm f/4 PRO, and the 100-400mm zoom. If you shoot wildlife, sports, or anything far away, this little metal puck is worth a serious look.

People searching for "Micro Four Thirds teleconverter" or "how to get more reach on OM System lenses" will find the MC-14 is the answer, as long as you own one of the compatible lenses. It preserves the weather sealing of both the lens and body, which matters if you shoot outdoors in rain, dust, or snow. The trade-off is light. A 1.4x converter costs you one stop of aperture, so your f/2.8 lens becomes an f/4. That's the deal, and for most telephoto shooters it's a fair one.

We don't have a price for every region, but listings show it going for 470 CAD, 32,990 INR, and 98,657 JPY. It's a niche product, but within that niche it's basically a must-have. The MC-14 is small, weighing just 254 grams, and it doesn't add much bulk to your kit bag. If you already own the 40-150mm PRO, this turns it into a 56-210mm equivalent, which is a huge jump for birding or motorsports.

Skip the MC-14 if you don't own one of the three compatible OM System lenses. It's useless with other Micro Four Thirds glass, so check your lens list first. Also skip it if you shoot a lot in low light, since the one-stop loss will push your ISO up or your shutter speed down. If you need maximum image quality and shoot mostly static subjects, you might prefer cropping from the bare lens instead of accepting the slight sharpness drop. And if you're on a tight budget, a used telephoto zoom like the Olympus 75-300mm might give you more reach for less money, just without the PRO build and weather sealing.

Should you buy the OM System MC-14? If you own the 40-150mm f/2.8 PRO or the 300mm f/4 PRO, yes. It's a no-brainer. You get 40% more reach, keep your weather sealing, and spend a lot less than you would on a new lens. The one-stop light loss is real, but for outdoor telephoto work in daylight, it rarely matters. The slight autofocus slowdown is the only real annoyance, and even that is manageable.

If you don't own one of the three compatible lenses, skip it. This isn't a universal teleconverter, and it won't work with most Micro Four Thirds glass. But for the people it's made for, the MC-14 is one of those rare accessories that just works. It's small, tough, and does exactly what it promises.