Sigma announces new mount conversion service, 4 years warranty


Several websites are already reporting the official announcement from Sigma: the new mount conversion service will start on September 2nd, 2013 and it will be limited to all Sigma Global Vision lenses. In addition, the company also announced that all Sigma products bought after July 1st, 2013 will be granted a new 4 years warranty.

Full press release:

Sigma Corporation’s New Mount Conversion Service Enables Lens Use across Camera Systems

Manufacturer announces first-ever mount change option, as well as universal, four-year warranty for all products

RONKONKOMA, N.Y.--(BUSINESS WIRE)--Sigma Corporation of America, a leading researcher, developer, manufacturer and service provider of some of the world’s most impressive lines of lenses, cameras and flashes, today announced a revolutionary new, fee-based service that will enable the company’s Global Vision lens owners to change their lens mounts for use on different camera systems.

Starting Sept. 2, Global Vision lens owners can request the Mount Conversion Service to convert their current Sport, Contemporary or Art DSLR lenses to their choice of a Sigma, Sony, Pentax, Nikon or Canon mount. Global Vision category lenses for mirrorless interchangeable lens cameras (MILCs) can be updated to either a micro four thirds (MFT) or Sony E- mount.

In addition to the announcement of the industry’s first Mount Conversion Service, Sigma is also extending the warranty on all of its products – including cameras, lenses and flashes purchased on or after July 1, 2013 – to four years. Previously, warranties varied by product. This enhanced product protection provides Sigma’s customers with more consistency and improved service.
“Professionals and amateurs alike are taking advantage of the many affordable camera options in today’s market; they’re updating their camera bags and exploring new systems and brands,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “When photographers purchase a lens, it’s often a significant, financial and artistic commitment – and we believe that investment should last a lifetime. Our new Mount Conversion Service and extended warranty are intended to help Sigma users get more enjoyment from our products, regardless of how their approach to photography changes overtime.”

The Mount Conversion Service is limited to all of Sigma’s Global Vision lenses. Current, applicable full-frame lenses include the 120-300mm F2.8 DG OS Sport and 35mm F1.4 DG Art; APS-C crop sensor lenses include the 30mm F1.4 DC HSM Art, 17-70mm F2.8-4 DC OS Macro Contemporary and 18-35mm F1.8 DC Art; and MILC lenses include the 19mm F2.8 DN Art, 30mm F2.8 DN Art and 60mm F2.8 DN Art. Lenses can be converted to any mount of a photographer’s choosing, as long as Sigma has released that product in the requested mount.

Cost of the conversion will range between $80 to $250, plus shipping costs, depending on the focal length of the lens. All lenses will be shipped to Sigma’s US subsidiary in New York, and updated, calibrated and optimized for the new camera system at Sigma’s factory in Aizu, Japan. All lenses that undergo the Mount Conversion Service will be covered under warranty for six months following the update. Teleconverters, USB Docks and other accessories are not eligible for the service.

To request the Mount Conversion Service, please visit your local Sigma subsidiary. Customers in the United States should visit

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  • colour me skeptical

    I would like to see their internal business case study to see their estimated demand for this service. Maybe it’s because I only own Nikon lenses, but I can’t image there being that many dedicated Sigma customers who flip flop between Canon and Nikon DSLR bodies.

    • TheInconvenientRuth

      That is not the idea behind this. On cheaper lenses, after fee and shipping most users will probably rather sell their lens and. Uh a new one. I doubt many users will do this unless it is a. Dry expensive super-tele. What it DOES do is -especially in combination with the 4y warranty- significantly increase consumer confidence in Sigma lenses/Brand. That is potentially worth far more. I think it’s a really clever move. It’s a bold statement about the confidence they have in their new product lines. Well played, Sigma. Your move, Canikon…

    • jk

      as I said once before , it is not targeted for Nikon to Canon or Canon to Nikon kind of conversion requests, but it is for conversion between electronic mount systems such as Canon EF, Sony A , Sony E , Fuji X , mFT, etc.
      Nikon and Pentax have mechanical aperture control system and thus, it is very hard to convert it to other mount system.

      • Dpablo Unfiltered

        Well, I just knew that it wasn’t going to be free.
        The thing I notice about this is that they are only offering it on a few of their best new DSLR lenses. That tells me that they are taking a different approach, going lens first and mount second, possibly eventually saving money on design and production costs. This could work strongly to their advantage in the long run. And it also gives them more flexibility to redesign the mount in the stupid event that one (ahem) of the manufacturers throws them another curveball and tries to make all their stuff obsolete. Hey, it happened before…
        Your conversion might be from the old canon mount to one that works with some doo hickey that was there all along but nobody knew why. And at that point it would be worth every stupid penny…

      • Fiatlux

        This is why I wonder wether Sigma will actually change mounts, or swap a refurbished lens in one mount for another.

      • patto01

        I dunno. “..convert their current Sport, Contemporary or Art DSLR lenses to their choice of a Sigma, Sony, Pentax, Nikon or Canon mount.” seems to contradict your theory.

      • Steven Wade

        I’m pretty sure you can’t convert a DSLR mount to something like Fuji X-Mount, you’d have to have a different lens design.

    • Dpablo unfiltered

      I don’t see any 24-70 on that list, but I’ll guess that the next f2 lens will be on there. If I had that or a 35 and I liked the one I had then it would be easily worth even a couple hundred to switch it if I wanted to. But this is NIKON rumors. So obviously this service is more for someone else…
      I think they’re probably more appreciative of this on some of the other fan pages.

    • Dumeril Seven

      No, I think the idea behind this is simply to add an incentive to go “off-brand” and get a Sigma, by giving the buyer a sense that a Sigma is a more “future proof” decision. It’s pretty clever really. It also helps that their latest lenses have been pretty innovative.

  • Joseph Li

    Wow..Sigma is definitely gaining momentum lately. With all the nice lenses they produced recently, the rumored upcoming 24-70 f/2, and now with better warranty and customer support…hmmm…wake up Canikon! Hmmm but a mount conversion for $80-250 that’s a bit more pricey than I expected. Still, that’s probably better than selling your Sigma with the current mount and buying another mount and taking the loss in double depreciation.

  • Mike

    Sigma lenses purchased in Canada come with a 7 year warranty already (for new concept lenses), 10 for the outgoing generation.

    • jk

      amazing , it comes with just a year warranty here.
      and most of places.

  • Daniel

    converting back and forth between Nikon and Canon mount? Still a better love story than twilight

    • jk

      I think Nikon to Canon or Canon to Nikon conversion are not so easy but between electronic mount systems it is easy to do this.
      for example A to EF or EF to A or E to mFT or X to NX.

    • Arnold

      who gives a hoot. i shoot medium format. why waste my time with cheap, junky sigma lenses…

      • Christobella

        We’re not worthy

      • joe Coughlin

        You are a tool,

      • Spy Black

        So WTF are you doing here poseur?

      • BroncoBro

        …and you’re wasting your time here doing what?

      • Steven Wade

        Who gives a hoot. I shoot large format. Why waste my time with cheap, junky medium format lenses…

      • hk

        Link to your awesome pictures please, you stuck up piece of %$#%

        • Jorge

          Wow. That’s rude. OR the green monster of envy has reared it’s ugly head.

      • outkasted

        you shoot MF so wth reply?

    • rider

      So, lens mount change is not free…..

  • Jojo

    Commendable, but probably easier, quicker, and
    possibly cheaper to sell on and replace the lens. Now if this were to be
    extended to old Sigma lenses, that would be superb.

  • MB

    So Sigma is not Santa and nothing is free … now we know …
    It seems like an interesting proposition at least for some amateurs though, the kind of people that think of nothing else but how some other gear will somehow make better pictures for them, instead of taking the pictures and trying to improve their skills.
    People actually using their gear will see little use of this service.

    • patto01

      Translation: I am a great photographer and anyone who disagrees with me on anything is an amateur.

      • MB

        Nope, we obviously do not speak the same language.
        Pros use and wore out their gear too fast to have any use of this kind of service, and then they are selling it in “like new” condition to us amateurs …

        • patto01

          I’ve only met two pros and both used their lenses until something significantly better came along. It’s difficult to wear out a lens; it either breaks beyond practical repair or something a lot better comes along.
          Anyway, I was referring to your assertion that people who want better gear don’t work at improving their skills. I shoot every day, read articles and books on the various aspects of photography, watch Kelby Training,, and other videos but I still want better lenses. Any avid photographer who says they don’t is a liar!

          • MB

            Aren’t we all, want better lenses I mean …
            I was talking about the people that just want new gear and don’t actually use even the one they already have, and there are plenty of them and this kind of service is just right for those kind of people … and trust me you can wear the lens and hardly any lens made these days will last longer than 10 years.
            Anyways I don’t believe that only gear makes better photos.
            By the way Metabones Speedbooster does have an EF mount and it was made before an F mount if I remember correctly:


            • patto01

              Well, then I’m sorry I took it the wrong way. I guess I don’t know anyone that buys new gear to the exclusion of practice. I’m not much of a “people person,” as my jumping to the wrong conclusion attests.

      • Jorge

        You must be one of the “gear changers” lusting after equipment you don’t need in order to “think” it’ll make you a better photographer. Hurts doesn’t it?

        • patto01

          Nope. I’m one of the people who have no time for idiots but I’ve made an exception in your case.

    • Steven Wade

      Or maybe some people decide that they like the 5D sensor way more over the D800 or D4 sensor and are willing to make the change (cough Zack Arias). Maybe when Fuji continues to update their cameras and more people decide to go with that and want to use the Metabones Speedbooster that doesn’t have an EF mount. There are a number of reasons professionals might switch.

      • Jorge

        I’m on the Fuji fan boat now. I still have my D800, D700, D3, and D300 with all my Nikon Glass but rarely use it. Fuji – wow! In the last three weeks I’ve been on various business/shooting trips shooting stock all over the Northeast and out of the 6800 images I have to review, over 5,000 are Fuji X-E1 photos, the rest are with the D800 which I used as I did my MF kit: Tripod, release, Mirror up. etc. etc.
        I love the Fuji and hopefully will sell the D3, and D700. I’ve already given the D300 to one of my kids with a couple of lenses… Can’t wait to be rid of the dead weight
        The D800 I will keep for the time being as the images are truly magnificent when the need arises.

    • Jorge

      Here! Here!! +1

      • Hermann Kloeti

        Where? Where??

  • david K

    Sigma is making progress on many fronts: product quality, assurance of compatibility and warranty. If they were public, I’d buy their stock. They are going to gain market share, if they have not already. If Nikon or Canon were smart, they would try to buy Sigma.

    • Jon Ingram

      Agreed, I looked into buying a large chunk of stock with them before their 18-35 1.8 release, but was disappointed to find out that they were a family company. Anyway, more power to them. Sony might be gaining momentum to, so I would watch their stock closely over the next year or so.

  • Marco Santa Cruz

    This makes a ton of sense…. Let say you were gonna buy all canon or nikon lenses… well what if sigma/sony/canon/nikon made an awesome camera, and now you have to get it… well… whats holding you back are your expensive brand lenses… not anymore… just buy sigma lenses now.. and guess what… say you want to change systems in two years… go for it, you have sigma lenses, and you can change their mount.

    • Jorge

      Amateur thought process at work here.
      How about stop lusting over gear that is NOT going to make you better. Learn to work the equipment you have and go take a damn picture,

      • Marco Santa Cruz

        is that what you are doing?… lusting over what product?… You do know companies spend a great deal on market research before they develop a product right?… before you accuse someone of anything, perhaps you should look at yourself, looking like a fool is an easy misstep.

  • nobody

    The D400 is supposed to appear within a couple of weeks, and you’re still selling Sigma news instead of Nikon rumors? Incredible 🙂

  • Lumberjack

    Hmm. Convert your lens and lose most of the warranty.
    Am I reading that right?

    • Rob

      I doubt it would invalidate their own original warranty. Six months from when they work on it if your lens is already out of warranty, I would imagine.

  • knbj

    What a great option to have available. Sometimes switching is justified. I did it for valid reasons, but I have also stuck with Nikon since the release of the D700. This may help the used market a bit too since if you find a good deal then it may make sense to just have it switched. I have more issues with people not using their cameras more than switching back and forth…..

  • Jon Ingram

    I’m a big fan of sigma’s innovation lately, BUT I must say this doesn’t seem that appealing to me. I can buy a sigma-nikon mount lens off of KEH in good condition, sell it for almost the same price, and buy another one in a different mount. In some cases I’ve only lost a few dollars or even no money at all using this method. I’m not saying some people won’t find it useful, especially if a lens is difficult to find used, but I don’t see this being a game changer.

    • jorge

      Here! Here!

  • neversink

    Well, the warranty should put Sigma into bankruptcy as their lenses, most of which are inferior to Nikon or Canon lenses, will be in repair many many times during those four years. Good luck Sigma owners.

  • Nitpicker

    Don’t have a gripe with SIGMAs optical performances (which I find to be extremely good in some cases, the 85mm f1.4 i.e.) but I always found SIGMAs AF atrociously inferior to NIKONs. What good is an f1.4 prime if the focus is off a quarter of an inch on every other image?
    Sold all my SIGMA primes and got NIKKORs a couple of months back. I’d rather have an f1.8 Nikon with superb AF than an f1.4 SIGMA that gives me mush half of the time…

    • outkasted

      ahh dud all I can tell you is my Sigma 35mm/1.4 ART is off the heazy for cheezy

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