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ABOUT TRIPOD, HEAD AND VIBRATION

MARCH 2005

In this setup, the direction of wind changes by the front wind guide. So the vibration amplitude was oscillating according to the wind speed and direction.

I heard much about a windy situation from Mr. Mah but I could not fully understand or agree what he said until I tested the tripod with this small fan. I couldn’t believe my eyes.

Again Manfrotto 055 37 tripod and Gitzo setup with Markins M10 ball head and Nikon D2H camera were tested for comparison. At this time, only difference is the tripod. You may want to know how strong the fan can generate but I couldn’t find any specifications. It is only a small desktop fan for personal use. The wind was far from being strong.

tice using one’s equipment properly with good knowledge of it.

In the same manner, one can still be happy if one knows how much the equipment can pro- vide. Having normal chances of success does not mean that something is impossible. But it is very important to know whether your equipment guarantees higher chances or not. So use faster shutter speed when your tripod and head are not for professionals. This kind of practice will guarantee you the similar quality of image. What I want to emphasize is that there is a dif- ference and we need to know the difference. Finally we should think and act based upon it.

Tuning Tripod: Markins Tripod Base TB-20 and TB- 30

If there is no such difference, there is no reason to pay twice or three times much money on your tripod. One last comment about this test is that a Markins tripod base TB-20 was used, replacing Gitzo center column. I’m sure that this also helps a lot in reducing the wind effect.

Having too many adjusting parts is not good in terms of vibration reduction because it might be the reason for an excessive vibration. Markins recognized this and provides a simple but great solution.

Some other remarks

Vibration comes from so many sources. There is no simple solution.

This article is not suggesting that you must buy professional equipment to reduce the effect of vibration. Professional equipment will guarantee a higher chance of success. We don’t have to pay all the prices when nobody but oneself cares about the blurred images. One can try bracketing. One can try later. But if one wants higher chances then one should learn and prac-

37 I have no malicious intention on Manfrotto tripod. I also used Manfrotto 190 for a long time before I up- graded to Gitzo. Manfrotto 190 or 055 are the most common tripod selections when one first considers getting one. Availability is the only reason.

With a Markins tripod base, the vibration was decreasing more rapidly. In other word, using Markins tripod base, the camera becomes more stable than with the original center column.

PAGE 13 OF 15

You can also see that without the center column you get a higher natural frequency and a nar- rower envelop, which means a stiffer system.

30

VIBRATION AMPLITUDE [um]

VIBRATION AMPLITUDE [um]

20

10

0

  • -

    10

  • -

    20

  • -

    30

  • 0

    100 200 300

DATA INDEX (0.2 seconds)

[With Markins tripod base]

30

20

10

0

  • -

    10

  • -

    20

  • -

    30

  • 0

    100 200 300

DATA INDEX (0.2 seconds)

[With Original center column]

400

400

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