Sigma APO Tele Converter 2X EX Review

According provided by teleconverter Sigma APO Tele Converter 2X EX (for Canon) many thanks to Oleg Malakhov.

Sigma APO Tele Converter 2X EX Review

Sigma APO Tele Converter 2X EX Review

Often Sigma APO Tele Converter 2X EX is bundled with some Sigma lenses. There is an updated version - Sigma APO Tele Converter 2X EX DG, modified specifically for use with digital cameras. Such a converter costs about $ 250, which is 2 times cheaper for a similar converter from Canon.

Teleconverter Sigma APO Tele Converter 2X EX increases focal length lens in 2 times, while the number F also doubles, respectively aperture the lens is reduced by 4 times (2 stops). Sigma APO Tele Converter 2X EX transmits to the camera the already increased focal length and F-numbers, which are recorded in EXIF... The optical design consists of 6 elements in 5 groups. Weight - 230 grams. In the hands it feels like a solid solid product, made in Japan. The back of the case is rubberized.

The best thing teleconverter It works specifically with Sigma lenses, with native Nikon lenses (in the Nikon version) and Canon, most likely there will be no automatic focusing, and other problems (for example, the lack of recalculation of F-stops) are also possible. This nuance strongly repels the acquisition of the device. Compatibility with Sigma lenses can be viewed here.

General information about how converters work and what they are used for can be found in the 'sectionWhat is a teleconverter and how does it work'.

I used teleconverter with lens Sigma 70-200mm 1: 2.8 APO EX HSM, while the speed of automatic focusing has not changed, and the quality of the resulting images has suffered a little, in the first place they started to show up more strongly chromatic aberration. In this case, teleconverter turned the lens into a telephoto zoom TBU, EGF on camera Canon 350D began to equal 224-640 mm :) During the shooting, the image stabilizer was sorely lacking.

Here link to the archive with the originals —177 MB, 25 photos in format RAW, photo parameters in the gallery of the site and archive are indicated here. When shooting was used protective filter Sigma EX Multi-Coated UV 77mm Japan.

In general, I was satisfied with the quality of the created image. With a 70-200 lens and a twofold increase in focal length, it is very easy to shoot animals and distant objects.

Catalog of modern Canon converters can look at this link.

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Material prepared Arkady Shapoval. Training/Consultations | Youtube | Facebook | Instagram | Twitter | Telegram.

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Comments: 21, on the topic: Overview of Sigma APO Tele Converter 2X EX

  • Hunchback

    Shoot at 500-600 mm, without stub, without autofocus (if not Sigma-lens). It’s hard to imagine something more masochistic :)

    • Oleg

      the word “stub” sounds cool, but a tripod can take a sharper photo than an included stabilizer. Personally, if I wanted to get a sharp photo, I turned off the stabilizer and put the camera on a tripod

    • Denis

      MTO-500 is even worse, it also has a diaphragm 8 to all of the above.

    • anonym

      You can imagine. MTO-1000. Shoot even more masochism without a tripod ...

    • Artem

      Nikon released a new camera 1 V 3, new lenses were also introduced, in particular 70-300 ф4.5-5.6, I’m a little prokotor Nikon marketers who fundamentally disagree with you :)
      The lens operates in a focal length range equivalent to 189–810 mm in 35 mm format. It allows you to easily make sports reports, shoot endless landscapes with high detail, as well as zoom in on remote wildlife objects. Thanks to the compact design of this super telephoto lens, hand-held photography is extremely convenient, and the lens retraction mechanism provides portability when moving. (from)
      800mm shooting is extremely convenient! xDDD
      Here is the release link
      So, “you don’t fumble” :)

      • Denis

        But nothing that he has an image stabilizer and autofocus, in contrast to what we are discussing?

    • Kirill

      I took pictures of birds from 200 meters flying with manual telephoto cameras with a focal length of 500mm-800mm without shaking - photo hunters, on the go, sit on autofocus and stub like a heroine ...

  • Nick

    I wonder if there have been attempts, or is it possible to physically build a converter that preserves the aperture characteristic ... in theory, it should be a large device relative to the lens itself.

  • Ivan

    If I am not mistaken, then these attempts would be against the laws of physics, in particular - optics.

    • Novel

      You are wrong :) On shutterless cameras with a crop factor of 1.5-2.0, you can use a device called Speed ​​Booster. In fact, this device is the antipode of a teleconverter. The entire image that a full-frame lens produces is zoomed out and positioned on the zoomed out sensor. As a result, the lens aperture increases, sharpness increases and the wide angle remains a wide angle (i.e. 24mm full frame on the crop will give the same angle as on the full frame). This is not fiction, the devices are sold, you can connect Canon lenses at 4/3 or Sony Nex with autofocus support. But there are also disadvantages - not compatibility with all lenses, autofocus, due to the implementation of its logic in the converter chip, does not work so smartly.

      • Ivan

        ABOUT! Thanks for the info, you have to google it. Thanks!

  • Kostya

    The last photo was very cool.

    • kiev_poznyaki

      Yes, the noble sparrows turned out!

  • Ivan

    Oh, well, it's just an "EGF rectifier".
    Those. if we planted a 50mm f2.0 on a mirrorless with a crop of 1,5, we would get an EGF of 75 and a depth of field, equivalent to aperture of f3.5.
    And this contraption projects the image of the lens onto the matrix so if it were 33,3 mm and f1,33, but we would not use this booster.

    In fact, the image, aperture, depth of field and so on will be similar to using 50mm f2.0 on a full-frame device.

    However, one should not forget that the “unauthorized” increase in the number of lenses in the optical scheme, the complication of its scheme has never made the image better.

    And, by the way, this device does not cancel the decrease in aperture in any way when using a normal, increasing converter. There is no getting away from it yet.

    • Novel

      If I understood correctly, this is also about Speed ​​Booster ... And so.

      The viewing angle will be the same as that of the same lens in full frame (+/-, adjusted for coefficient).

      The aperture ratio will increase - the amount of light falling on the matrix will increase, earlier this light hit the space around the matrix, i.e. essentially did not participate in the formation of the image.

      The depth of field will remain unchanged, as is the case with the teleconverter. After all, you either "shrink the picture" to fit it on a smaller matrix, or you cut out only the central part.

      Sharpness will increase as the large image formed by the lens will be reduced to the size of the matrix. It falls when cutting out the central part of the image. There will also be a drop in sharpness due to the addition of an extra optical element, but an increase due to a decrease will block it. In addition, all HA will decrease (how they grow when using a teleconverter).

      • Denis

        DOF will not change only if this “EGF rectifier” passes the intermediate image through frosted glass, like OVI in DSLRs. Otherwise, the DOF will change depending on the optimal characteristics of this “rectifier”. If you were holding dual-lens SLRs in which the viewfinder is matted only in the center, you will understand what I mean.

    • Novel

      I would like to clarify about CA - alas, they are growing. Especially around the edge. So there is only aperture and angle in advantages.

  • anonym

    It does not fit with Tamron: the frames of the lens blocks interfere with attaching the lens (((

    By the way, your link to the compatibility page does not work, the correct one is:

  • Serge Baumstein, Israel

    Dear Arkady
    Question: is Nikon D7100 compatible with Sigma 18-200, f \ 3,5-5,6 zoom with Sigma APO Tele Converter 2X EX?
    Thank you!

  • Dmitriy

    I will sell such 100 $ write

  • Alexander

    Hello everyone. Tell me, please, will the stabilizer work with sigma apo tele converter 2x ex dg canon ef + sigma 24-105 f4 arf for canon ef? I did not find the sigma information on the site. Thanks.

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