Brent Johnson Posted February 1, 2012 Report Share Posted February 1, 2012 I've been practicing lately and I have noticed after I watch some footage that the frame gives a bit of a shake while walking. Is this a common "noob" occurrence? Is it the arm not calibrated right? I'm trying to figure this thing out with different set ups. If you have any ideas, that would be awesome. Quote Link to comment Share on other sites More sharing options...
Premium Members Wolfgang Troescher Posted February 1, 2012 Premium Members Report Share Posted February 1, 2012 I didn´t realize any shaking, just a little "bobbling" when I walk very slowly. But I think it´s because I need more practice, or this is the little difference between the Zephyr arm and a "little more" expensive G70X. How much is your load? I use a weight cage to increase weight. When I move in a "normal" way the Zephyr-arm produces very good results. Perhaps you can show us an example? Wolfgang Quote Link to comment Share on other sites More sharing options...
Brent Johnson Posted February 1, 2012 Author Report Share Posted February 1, 2012 My load is around 15-17lbs I also have a 5lb weight on my rig from a weight set that I use with 7d's and 5d's. I'll throw something up to show you what I mean. Just some walking around in the apartment complex. Quote Link to comment Share on other sites More sharing options...
Brent Johnson Posted February 1, 2012 Author Report Share Posted February 1, 2012 My load is around 15-17lbs I also have a 5lb weight on my rig from a weight set that I use with 7d's and 5d's. I'll throw something up to show you what I mean. Just some walking around in the apartment complex. I was going through the rig just now and I noticed that the gimble's "yoke" (I don't know what else to call it, its the pin that goes into the gimble that is connected to the handle) That part is a bit loose when I have it on my stand. Would that cause the shake? Quote Link to comment Share on other sites More sharing options...
Premium Members Wolfgang Troescher Posted February 1, 2012 Premium Members Report Share Posted February 1, 2012 Not sure we´re talking about the same thing. But is this "yoke" still there under load? Quote Link to comment Share on other sites More sharing options...
Brent Johnson Posted February 1, 2012 Author Report Share Posted February 1, 2012 The bolt doesn't wiggle while under load, no. im trying to post a vid to youtube now. Quote Link to comment Share on other sites More sharing options...
Premium Members Wolfgang Troescher Posted February 1, 2012 Premium Members Report Share Posted February 1, 2012 This little clearance on the gimbal is normal. Quote Link to comment Share on other sites More sharing options...
Brent Johnson Posted February 1, 2012 Author Report Share Posted February 1, 2012 (edited) ok, thanks. Would some shake happen if I wasn't dynamic balancing? I'm having some difficulty doing that. Edited February 1, 2012 by Brent Johnson Quote Link to comment Share on other sites More sharing options...
Premium Members Wolfgang Troescher Posted February 1, 2012 Premium Members Report Share Posted February 1, 2012 I think no. Dyanmic balance is particularly important if you pan your camera, so you don´t have to compensate the tilt. Quote Link to comment Share on other sites More sharing options...
Brent Johnson Posted February 1, 2012 Author Report Share Posted February 1, 2012 All right, check out this shake/wobble thing. I cranked up the iso because there is zero lighting at my place. http://www.youtube.com/watch?v=Z73BqRjGMiE Quote Link to comment Share on other sites More sharing options...
Premium Members Wolfgang Troescher Posted February 1, 2012 Premium Members Report Share Posted February 1, 2012 All right, check out this shake/wobble thing. I cranked up the iso because there is zero lighting at my place. http://www.youtube.com/watch?v=Z73BqRjGMiE Wow! This shaking is terrible :o :o ! Don´t know the cause for it. Seems your system has some interferences. Perhaps the professional operators know more about it. Wolfgang Quote Link to comment Share on other sites More sharing options...
Brent Johnson Posted February 1, 2012 Author Report Share Posted February 1, 2012 yeah weird right?? Hopefully tomorrow morning someone else could chime in with some advice. I'll keep working on it and tweaking things too see if i can make it better. -B Quote Link to comment Share on other sites More sharing options...
Premium Members Michael Wilson Posted February 1, 2012 Premium Members Report Share Posted February 1, 2012 Something is probably loose on your sled. Check every connection between components. Almost looks like electronic camera stabilization. Try stomping around to see if there is vibration making its way to the sled. Quote Link to comment Share on other sites More sharing options...
Premium Members Alan Rencher Posted February 1, 2012 Premium Members Report Share Posted February 1, 2012 I had this problem with a red camera once. I figured it was because the camera was front heavy, and I had move the whole thing back on the sled. The RED didn't have a beefy Arri style dovetail, so I only had the thin aluminum from the Zephyr's dovetail holding the camera up. Every little, minute movement was, of course, amplified. Quote Link to comment Share on other sites More sharing options...
Premium Members Mark Schlicher Posted February 1, 2012 Premium Members Report Share Posted February 1, 2012 That's not normal. Particularly check the connection right under the camera stage, at the top of the post. Make sure the hex nut is snugged up tight. It looks to me like the vibration or flex is coming from the camera stage. How is your camera connected to the weight plate? How is the weight plate connected to the sled's dovetail plate? A few photos of your camera setup would be helpful. Quote Link to comment Share on other sites More sharing options...
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