关于新款系统家的震动衰减时间
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[1 楼] range88 [泡菜]
17-7-8 09:43
国外有用户对比了新款和老款,指出新款的震动衰减时间是老款的2倍。
原文如下:

I tried out a new release-3 Gitzo in the store and was surprised by the amount of sway. That was the 5 section. A 3 section felt fine. I concluded it was the new release-3 leg locks.
Then I went online and found a review comparing the GT3542LS to the GT3543LS (i.e. same model except release 2 versus 3). They found double the time to settle in the new model with the new leg locks. So I paid an extra $100 for one of the last GT3542LS's available. That model number means Gitzo, Tripod, series 3, carbon fiber, 4 section, release 2, long, systematic.

老外把问题归因于新的脚管锁紧系统增加了脚管间的框量。
不知道国内有没有人做过对比,衰减时间很容易测试。
[3 楼] 曬駱駝 [泡菜]
17-7-8 14:46
老款1325mk2最正。
[2 楼] range88 [泡菜]
17-7-8 13:16
提到评论的具体内容:

http://www.the-digital-picture.com/Reviews/Gitzo-GT3543LS-Systematic-Carbon-Fiber-Tripod.aspx

One of the Gitzo Systematic tripods' best features has been the overall rigidity facilitated in part by the leg locks and I totally expected this one to at least meet and more likely exceed that of its predecessor. To compare the two tripods, I fully extended them side-by-side on an indoor flagstone-over-concrete floor (rock solid with grip for the feet). With identical Arca-Swiss Z1 Ball Heads installed on each, I locked a Canon EF 600mm f/4L IS II USM Lens first onto the GT3543LS. I was immediately surprised at the amount of vibration showing and switched the lens to the older tripod's head. The vibrations dissipated noticeably quicker as I expected to see on the new one. After re-tightening all leg locks, insuring that the legs were properly spread, checked foot tightness and checked head tightness (all adjustments), I continued back and forth testing between the tripods and then swapped tripod heads to insure they were not influencing the difference. It was obvious that vibrations such as a tap mid-tripod-leg or on the camera body lasted at least twice as long on the GT3543LS as they did on the GT3542LS (4 seconds vs 2 seconds for example).

Surprised? Yes. Disappointed? Definitely. But, we must keep in mind that I was exceeding Gitzo's focal length recommendation of the previous version (400mm) by 50% and that the difference between the two is very small. Still, it is hard to see a product that I love and rely on take a step backwards and I use that lens on this tripod with frequency. In the field, vibration sources such as wind are common and any help in dampening them is welcomed.