answers: 33

  1. Radmir
    28.07.2016

    Indeed, the first)
    Arkady, just opened your eyes! Thanks)

    Reply

  2. Andrei
    28.07.2016

    Arkady do not think that I am finding fault, but here is a mistake “Motor for Nikon DX 18-55mm F / 3.5-5.6, DX 55-20mm F / 4.5-5.6” I had to introduce 55-200 lens atoms 55-20 does not exist)
    and so very informative
    I would really like to see something similar to a comparison of motors from Nikon and Kenon (I just sold all the photo equipment and can’t decide which system to get on ())

    Reply

    • Arkady Shapoval
      28.07.2016

      Fixed

      Reply

  3. Pastor
    28.07.2016

    Cool article. How surprised 18-70! I definitely won’t sell it now :)))

    Reply

    • Arkady Shapoval
      28.07.2016

      Here here I already wrote that only 17-55, 16-85 and 18-70 have a fast focus from DX zooms. Perhaps the new 16-80 will also be fast. About 18-70, at one time it cost a lot of money! This is now selling it for 50 cu

      Reply

      • Pastor
        28.07.2016

        Yes, up to a thousand cu was worth it. And now in the Russian Federation to find it cheaper than 100 bucks is a great success. And in my opinion, purely subjectively 18-70 faster 16-85 focuses. Although the difference is minimal.

        Reply

  4. Vladimir
    28.07.2016

    turning waves into rotational motion

    It seems to me that it would be more correct to write - hesitation.

    Reply

  5. Sergei
    28.07.2016

    The Nikkor 50 1.4G has a ring motor, only the focusing speed of the lens, to put it mildly, does not shine. :] So not everything is so simple, and reliability, as you already wrote, this motor in this lens does not differ (although mine survived from purchase to sale without problems).

    Arkady, hundreds of lenses have passed through your hands, tell me, are some of them really silent focusing? My Nikon's and not only glasses all chirped, rustled, groaned, etc. and so on, which was especially evident in the video recording (I did not try screwdriver lenses - there, probably, there was a nightmare in noise). There are many places where they write about different glasses about the “noiselessness” of focusing, and so far I am inclined to believe that this is not true.

    Reply

    • Arkady Shapoval
      28.07.2016

      If you shoot a video with a built-in microphone, then I have not seen a single really silent lens. SWM, USM / STM is much quieter than screwdrivers, or Canon Micro Motor (with a conventional micro motor), but really friction, movement of parts, lenses and other things are audible :)

      Reply

    • varezhkin
      30.07.2016

      Ie ring motor is not a guarantee of good speed right? those. no direct relationship?

      Reply

      • Sergei
        01.08.2016

        Well, I’m not an expert in Nikon motors, I can’t say anything. I know that the 50mm 1.4G focuses rather slowly. In theory, "ring" motors are more reliable - less plastic gears that wear out over time. But here is a copy of 50 1.4 Arcadia died from a light blow. I probably had a couple of minor blows, but the engine remained intact, perhaps just luck.
        In general, most likely the choice of motor type is due to the convenience of technological placement. If it is possible, without sacrificing compactness and other qualities, to screw a cheaper motor with a gearbox, Nikon sculpts it.

        Reply

  6. Sergei
    28.07.2016

    At 16-85, by the way, the drive is not direct (ring), but also gear. There is nothing special to compare in speed, but I would not say that it is very fast.

    Reply

    • Arkady Shapoval
      28.07.2016

      16-85 is slightly slower than 17-55 and 18-70, 17-55 is generally considered a “bullet”.

      Reply

  7. Vladimir
    28.07.2016

    Not that I was very interested in it, but sometimes the thought slipped through - how does he turn the “dog”. Thank you, now I will have an idea.

    Reply

  8. anonym
    28.07.2016

    18-70 has a disease, does the motor fail?

    Reply

    • Bogdan
      28.07.2016

      18-70 one iz from the very old ones, and it’s made up of a bulo to finish the bagato, so it’s not wonderful

      Reply

  9. Alexey
    28.07.2016

    Some posts about Nikon - (

    Reply

    • Arkady Shapoval
      28.07.2016

      Zabra will not be about Nikon and Kenon. And yesterday it was about the photographer’s notes :)

      Reply

  10. varezhkin
    30.07.2016

    thanks. wonderful article!

    Reply

  11. Bogdan
    30.07.2016

    And such a question. It’s clear with the focusing speed, but does the difference between gear and ring motors affect the tenacity and accuracy of focusing?

    Reply

    • Arkady Shapoval
      30.07.2016

      My practice has shown that it affects. The gears have a certain lag, while the ring motor changes its focus direction much faster and brings the focus. Perhaps it’s just that my opinion was wrong.

      Reply

      • Sergey
        30.07.2016

        The presence of a multi-stage gearbox (gear) increases the micro backlash. So a certain difference will be guaranteed.

        Reply

  12. varezhkin
    30.07.2016

    Is anything known about the new AF-P motors? Nikon releases 2 versions of 18-55, and it is rumored to be the same 70-300 again for crop.

    Reply

  13. Ruslan
    01.08.2016

    Was a couple of years ago 18-70 excellent color rendition; good detail was bought from the hands but absolutely in an unused condition.
    But after two years he began to miss every other time in the most literal sense.

    Reply

  14. Gene jb
    05.08.2016

    As for SWM, I’ll say that ring ones are subject to the action of time. They are made of ceramics, which has a weight, metal spraying and fragility inherent in all piezoceramics. From this, the motors are very gentle in operation, short-lived. Since a small calibrated gap between the rings is needed for work, when dust gets there, it can jam when it is still working with dust, the ring is erased due to the combination of abrasive and ultrasonic treatment and quickly becomes worthless. Repair is expensive.
    Small SWM motors are more reliable, they also have the weaknesses of their big brothers, but to a lesser extent.
    The old-type collector motors are in principle very durable. The power reserve for them depends only on the bushings and erasure of the brushes.
    STM motors are almost eternal. Only bushings are erased. With proper development, they can live 100 years or more.

    Reply

    • anonym
      06.08.2016

      it turns out that they refused the screwdriver in vain

      Reply

  15. andrei2911
    12.08.2016

    Tamron is honest in this respect. It clearly indicates the type of motor in the marking. And in all of its tops there are exactly ring motors - USD.

    Reply

  16. Eugene
    04.10.2018

    Great stuff !. Fairly complete information in simple, understandable language.
    Thanks to the author.

    Reply

  17. Valentine
    13.11.2018

    Comment ...
    1. a simple question 18-135 which motor? ..
    2. In terms of accuracy - which is better, and in terms of reliability, on pro cameras (D2-3-4 .. and on semi-pro D200-300-700) - a “screwdriver” or a wave? ..
    Comment ... When falling from a height of 1,5 meters, repair of a top lens with a wave motor can be equal to the cost of an almost new one?)))

    Reply

    • Arkady Shapoval
      13.11.2018

      1. compact swm
      2. it all depends on the specific lens and specific camera
      3. usually when falling from 1.5 meters you can buy a new lens, and it doesn’t matter what was in the middle, it will be glass containers and scrap metal

      Reply

  18. Vlad
    05.10.2019

    Tell me, what type of motor is in 50 / 1.8g and 35 / 1.8g dx?

    Reply

    • B. R. P.
      05.10.2019

      Look in the relevant articles on this site.

      Reply

    • Arkady Shapoval
      05.10.2019

      both nikon swm, nikon 50 / 1.8G ring, 35 / 1.8G DX compact

      Reply

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