answers: 84

  1. Vitaliy Donetsk
    15.04.2012

    Good afternoon! I can say so beginner but wanting to take good pictures.
    I have a canon eos 50d camera and a CANON EF 70-200 mm f / 4.0L USM lens.
    So, I took off a little with this lens and realized that I did not have enough zoom.
    And the question is: should I buy this extender EF 1.4x III or immediately get another lens like Canon EF 100-400 f4.5-5.6 L IS USM
    Thanks in advance for your reply.

    Reply

    • Arkady Shapoval
      15.04.2012

      For the future - in any case, you will have to take a "longer" lens. But whether a longer lens is needed at all - in practice, a teleconverter with 200-400 4 will be able to tell.

      Reply

  2. Roma
    19.05.2012

    I’m taking pictures at Zenith 11, I want to buy a teleconverter for shopping mall 2
    Have you met him? what reviews can you give about it?

    Reply

    • Arkady Shapoval
      20.05.2012

      I have not met.

      Reply

  3. Leo
    22.05.2012

    You forgot another type of tele-converter.
    One of a kind mass-produced.
    “SMC Pentax-F 1.7x AF Adapter” it is able to transform any non-autofocus lens into autofocus. By itself, it combines all the advantages and disadvantages of a teleconverter.
    A literal flight 5-6 years ago cost 100 bucks, now it’s even about $ 500 with it.

    Reply

    • ozls
      20.11.2012

      Not the only one! There was another Nikon TC-16A

      Reply

  4. steady-rock
    17.11.2012

    Is it possible to use two converters? for example, on a fotik zenith em with a 44m lens? and what will come of it ??) thanks

    Reply

    • Arkady Shapoval
      17.11.2012

      Yes you can. It will turn out a system with two tele converters.

      Reply

    • Vitaliy Polumyaniy
      27.11.2012

      Not a good effect! Converters do not multiply fokusna vіdstan parallel to one of one!

      Buy more beautiful MC K-1 2x M42x1 virobnitstva Arsenal - 200 UAH.

      Можу продати: +38(063)788-50-45

      Reply

      • Arkady Shapoval
        27.11.2012

        Are you sure there will be no effect? If you put a teleconverter on the lens, and one more on it, then the focal length will be multiplied by the first and second.

        Reply

      • Antonina
        28.05.2013

        And the aperture will fall by how much !!! Is it worth using two converters if the aperture ratio is minimal?

        Reply

      • Arkady Shapoval
        28.05.2013

        How much the aperture will fall is described in detail in the article. When using two converters, the aperture drops twice.

        Reply

    • Denis
      28.04.2014

      By the way, not all teleconverters support the sequential operation of several converters. Therefore, we must look in a particular case. For example, Kenko 3x will not work with another teleconverter.

      Reply

  5. Konstantin
    25.11.2012

    Hello. And give a protest? :-))

    Reply

    • Arkady Shapoval
      25.11.2012

      It's not my.

      Reply

  6. Valery
    08.12.2012

    Hello.
    In the instruction manual for the D90 with 18-105mm f / 3.5-5.6G ED VR AF-S DX Nikkor lens, the lens specifications section says: “The following accessories must not be used: teleconverters (all types),… ..”
    Does it really mean that this lens really cannot be used with a teleconverter, or “The teleconverter can be used with any lens.”

    Reply

    • Arkady Shapoval
      08.12.2012

      It is impossible. The ban is associated with the focusing system, it does not support apertures lower than 5.6, and when using the body of the converter, it will be smaller for any.

      Reply

  7. Valery
    08.12.2012

    Thanks for the answer and for the site. A lot of useful information.
    Correctly, I realized that in conjunction with the Helios81N and D90 MCs, will the Teleconverter work?

    Reply

    • Arkady Shapoval
      09.12.2012

      Yes, it will.

      Reply

  8. Novel
    04.01.2013

    If you put the K-37 135X converter on Jupiter 1A (2mm), then what is the focal length, 270mm or about 400mm? Canon 450D

    Reply

    • Arkady Shapoval
      04.01.2013

      Real - 270mm, EGF for 450D will be about 430mm

      Reply

  9. Alexander
    13.01.2013

    Good day. I am new to photography and recently became the owner of the Nikon D3100 camera, and for a start I got two lenses (more precisely one, the second Kit) Nikkor 18-55 and 55-200. I carefully read all your articles (thanks for such a great site), learned a lot of new things, and experiment with photography.
    But there is a small misunderstanding about the zoom. As a former owner of Canon SX 5,10,20,30, I could not understand about dancing with a zoom on a DSLR - is there a Nikkor zoom lens with AF-S and VR budget level, magnification 30x-40x? Scrolling through the list of zoom lenses, I was quite unpleasantly surprised by the price policy! Why is the cost of zoom lenses comparable to the cost of 10-20 new Canon SX30s? The manufacturing technology is almost the same, the stabilization system is also! They have a case made of gold, and the optics are made of diamond?
    There is a task - photographs of the Moon and a desire to stay with lenses from the Nikkor series with AF-S VR!
    I would like to get advice on solving this problem:
    1. What lens (if any) is available from the Nikkor series with AF-S VR comparable to the Canon SX30 (30x-35x) zoom?
    2. Will the teleconverter help? Which one is suitable for working with Nikkor? so that the autofocus and stabilization functions work?

    Thank you in advance for your advice.

    P / S / I would very much like to see an article from you, for a beginner, about the explanation about the zoom on the DSLRs in comparison with the digital soap dishes, since when switching from a digital to a mirror, newcomers get confused about the zoom.

    Reply

    • Arkady Shapoval
      13.01.2013

      There are no lenses with a high zoom factor of about 30X for SLR cameras. The price depends on the dimensions of the lens and the amount of optical glass spent on the lens, so a telephoto, for example, such - https://radojuva.com.ua/2012/11/obzor-nikon-if-ed-af-300mm-2-8/ weighing 2.7 kg will be equal to 5 PowerShot SX30. About zoom and its magnification is written here https://radojuva.com.ua/2012/04/kind-of-lens/

      Reply

    • Victor
      03.02.2013

      I myself am a beginner, but I will try to help others in this matter. Experienced photographers smartly operate with focal lengths and viewing angles, but you will not hear a word about the real increase in the lens of a SLR camera. So, approximately the increase can be obtained by EGF divided by 50, i.e. for example: there is a Tamron lens of 70-300 mm, for a crop of 1,5 (Nikon) EGF (effective focal length) at the long end will be 1,5 * 300 = 450 mm. divided by 50 we get a 9x increase, if with a 2x teleconverter, we get an EGF of 900, and an increase of 18x, but with a loss of aperture of 2 times, something like that.

      Reply

      • Arkady Shapoval
        03.02.2013

        You are wrong here. With a teleconverter 2x aperture is lost 4 times.

        Reply

      • Victor
        05.02.2013

        I agree, I made a mistake with 2x 4 times, but this does not change the essence of the answer for calculating the increase.

        Reply

      • Paul
        17.04.2017

        Victor, dear. The magnification of zoom lenses is considered very simple. You need to divide the maximum focal length by the minimum. This has nothing to do with approaching. Since the angle of the lens on a full frame is close to the human angle of view, it corresponds approximately to a focal length of 50mm on a full frame, or about 35mm on a crop. The approximation can be considered only after 50mm FF on full frame or 35mm on crop. That is, if the lens is 17-55, then it does not bring it closer to the focal length of 35mm at all ... At 17 it simply “removes”, at 20mm it simply does not “remove” so much. And only up to 35mm does it not remove or zoom in - it “shows approximately the same thing that we see without it. In total, its maximum approximation is… 55/35 = 1.57. If we take the 70-300mm lens mentioned above, then at the long end on the full frame we get an approximation of 6 (300/50 = 6), and on the crop… 8.57 (300/35 = 8.57).

        Reply

    • twin
      05.03.2013

      about the moon. I recently photographed it at 18-200. it was small, but it turned out pretty well. if you wait a month, it will be three times more ... bliznets.photogrammer.com.ua shot without a tripod, leaning against the window frame.

      Reply

      • anonym
        13.03.2017

        Where are the photos? What, you are not allowed to attach a photo so that we look. (And then they’ll write, and think what is there?) It’s direct, like a fisherman’s story about fishing! Photos must be attached in confirmation of their words. This applies to ALL! :-)

        Reply

  10. Victor
    05.02.2013

    I really liked your site, a lot of interesting and a lot of informative, thanks for your work!

    Reply

  11. Sergei
    06.03.2013

    Unfortunately, there are no bright thoughts, but now I know what a converter is and why it is needed. I got enlightened, thank you very much!

    Reply

  12. Denis
    06.03.2013

    For a long time I chose a fix on Nikon 5100, but I was constantly tormented by doubts: 35mm or 50mm? 35mm for an apartment itself, but at corporate parties it was necessary to poke the lens right in the face. 50mm at home even climb the wall ... And here it is! Teleconverter :) Now I have a Nikkor 35mm f1.8 and Kenko x 1,7 (the golden mean between x1,4 and x2 IMHO) with which my fix turns into 60mm. Recommend. Now a question for connoisseurs: how can you calculate how much the aperture drops with a x1,7 converter (crop camera, crop lens)? And what is your opinion about such a bundle?

    Reply

    • Arkady Shapoval
      06.03.2013

      Aperture drops 1,7 * 1,7 = 2,89 times (3 times), aperture does not depend on whether it is a lens on a crop, or on a full frame. Often there is a wrong impression due to the fact that the number F is recounted for depth of field.

      Reply

      • Maksim
        13.02.2014

        Good afternoon!
        Let me disagree with your, Arkady, calculation of the magnitude of the fall in the luminosity in this case. You yourself wrote in the article that with a 3x converter the aperture drops by 8 times. And 8 is 2 to the power of 3, but not 3 * 3!
        Thus, with a 1,7x converter, the aperture will fall by a factor of 2 equal to 1,7 to a power of 3,25 = XNUMX times!
        And with conv. 1,4x - 2,65 times - correct in the article!
        If I'm wrong, throw me stones)

        Reply

      • Arkady Shapoval
        13.02.2014

        Thanks, I fixed the error about 3 and 8. But I want to note that it is still not considered as described, namely not 2 in the power of the magnification, but on the contrary - the magnification in the power of 2. Details - https://radojuva.com.ua/wp-content/uploads/2014/02/teleconvert-f.jpg

        Reply

  13. Denis
    06.03.2013

    Those. aperture with the converter will not be f1,8? and f5,2? Right? Can this value be used for sharpening a picture? Do I need to set the aperture in the menu f5,2 or by default f1,8 will be equal to f5,2? The camera does not see the converter and with it shows that aperture 1,8

    Reply

  14. Aidyn
    07.03.2013

    Arkady, tell me please
    acquired a Samyang 500 mirror lens with a Tmount-Nikon adapter
    which converter is more suitable to use 1 lens 2 adapter nikon 3 converter or 1 lens 2 converter 3 adapter

    Reply

  15. Anatoly
    12.04.2013

    Kindly tell me. I need a teleconverter. But, one of the conditions is the ability to autofocus. From motor lenses I have only 24-70 F / 2.8 The rest without a motor. I wanted to buy a Nikon TC-17E II, but I can’t find the exact information whether it will work with non-motorized fixes (35mm 2.0, 85mm 1.4) and from 80-200 2.8. Thanks.

    Reply

  16. Boris
    16.04.2013

    I was thinking of buying a tele-converter for my nikkor 18-105 lens so as not to buy a more expensive nikkor 55-300 lens. But, having looked at your comparative pictures and seeing how much the teleconverter worsens sharpness, I decided to abandon this venture. Thank you for the article.

    Reply

    • anonym
      18.04.2013

      I watched test shots from my native Nikonov converters. The quality is very good, but they are two to three times more expensive than analogues.

      Reply

  17. Hleb
    16.05.2013

    And how does the teleconverter affect bokeh (blurring the background) with the same aperture value on the lens at the same scale (in the frame / on the matrix, the object occupies the same part of the frame, for example, a full-length portrait frame). On the one hand, we increase focus (more bokeh), on the other, the aperture decreases after conversion (less bokeh). If a practical comparison, a photo of one object on one scale? I want to take 24-70 IS f / 4 on the canon only to increase bokeh, does it make sense?

    Reply

  18. anonym
    18.09.2013

    Good day! Please tell me if there are converters that reduce the output image. Those. Desirable from a lens for a full-frame camera lens for crop. Thanks, Regards, Rinat.

    Reply

  19. is
    12.10.2013

    Hello. 2 teleconverters on canon 100-400 will do? some say yes, others no?

    Reply

  20. Alexander Yarygin
    17.11.2013

    By the way, there is a moment, for Canon there is no converter for EF-S lenses. Only EF. At least I looked through all the ebay and other resources and did not find the converter.

    Reply

  21. Kiba
    18.11.2013

    On Chinese sites there are teleconverters for $ 10, but without support for auto-functions in general, i.e. without contacts, in this case you need a lens with completely manual settings or you need to stick a lever in the converter to open the diaphragm (it turns out completely closed with such a converter).
    Are there any feedback or thoughts about using such converters?

    Reply

    • Kiba
      18.11.2013

      Oh, and the next article is about this, the question is being removed, thanks)))

      Reply

  22. Oleg
    22.12.2013

    Everything is right about teleconverters. I will only add that the most unpleasant thing besides a drop in the aperture ratio and a slower shutter speed, inevitably there is a loss of image quality. Any lens is, first of all, “a thing in itself”, a self-sufficient tool. Any attempts to attach some kind of additive to it lead to a deterioration in its optical properties, because initially it is not intended for hybridization with anything. In any case, it is better to immediately have optics of a longer "property" than to lengthen it with converters

    Reply

  23. Vladimir
    02.01.2014

    Happy New Year to all of you!
    I am a beginner in photography, so there are many more questions than answers. I purchased a lot from eBay, including a Fujica Teleconverter 2x for X-Fujinon mount lenses a week ago. The product description said that everything was working fine, so no questions arose out of ignorance. But when I took the teleconverter in hand, I caught the sound of something dangling in it. Indeed, one of the 2 levers (which with a long stroke) freely moved with your finger from side to side, in contrast to the second (bent with the letter "G" with a short stroke), which has a spring. I was confused, not knowing if this was normal or not. But I thought to myself that both levers should have springs. By the way, what each of the levers is responsible for. Professionals, I hope for your help. There is a teleconverter image for clarity, but I don't know how to add it.

    Reply

  24. Vladimir
    02.01.2014

    So far, I figured out what the levers are responsible for: a lever with a short stroke - a "jump rope", with a long stroke - a diaphragm. If not right, correct.

    Reply

  25. twin
    26.01.2014

    I still wanted to know about the converter, which is wound on top of the lens. It is much cheaper. but in quality?

    Reply

    • a guest
      28.04.2014

      Can I have examples of the names of those? :)

      Reply

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