Nikk Hearn-Sutton SOC Posted March 2, 2015 Report Share Posted March 2, 2015 Greetings Programs... I know this had been posted before but I can't find the thread. What causes the Alexa to vibrate on the sled and how to prevent this from happening. I'll be flying one in the next few weeks so I wanted to do my due dilegence before hand. Thanks in advance. Nikk Quote Link to comment Share on other sites More sharing options...
Premium Members Robert Starling SOC Posted March 2, 2015 Premium Members Report Share Posted March 2, 2015 It can only be a few things Nikk: 1. Something on the sled or camera is loose 2. You have flex in your mounting plate(s) 3. The sled or it's parts are flexing structurally 4. Accessories are flexing or vibrating That's about it but there's always another angle or experience someone else here might have. Good luck! Robert Quote Link to comment Share on other sites More sharing options...
Premium Members Philip J. Martinez SOC Posted March 3, 2015 Premium Members Report Share Posted March 3, 2015 Hi Nikk, I think you are looking for a mounting plate that will hold the Alexa at both the front and rear of the camera. People were talking about vibration when the camera was only mounted to the front. There are a number of "Alexa" brackets out there. PRO, XCS, Jerry Hill, Film-stuff, cam-tech. and my favorite http://www.cameraaccessorysolutions.com/products.html Quote Link to comment Share on other sites More sharing options...
Premium Members Philip J. Martinez SOC Posted March 3, 2015 Premium Members Report Share Posted March 3, 2015 The ALX-STBP Plate Quote Link to comment Share on other sites More sharing options...
Premium Members Matthias Biber Posted March 5, 2015 Premium Members Report Share Posted March 5, 2015 The key to avoid alexa vibrations is to brace the hook in the back. Otherwise the camera body is a huge lever that bends the dovetailplate, which results in vibrations. The videos on my website show the flex that can be in alexa setups and how to avoid. http://www.cam-jam.de/alexa.html Quote Link to comment Share on other sites More sharing options...
Nikk Hearn-Sutton SOC Posted March 7, 2015 Author Report Share Posted March 7, 2015 This is great. Thanks Fellas!!! Quote Link to comment Share on other sites More sharing options...
Premium Members chris fawcett Posted March 7, 2015 Premium Members Report Share Posted March 7, 2015 And there's the cheapo option! 1 Quote Link to comment Share on other sites More sharing options...
Nikk Hearn-Sutton SOC Posted March 18, 2015 Author Report Share Posted March 18, 2015 Thats an easy hack!! Thanks you all!! Cheers!! Quote Link to comment Share on other sites More sharing options...
Premium Members rupert peddle Posted March 18, 2015 Premium Members Report Share Posted March 18, 2015 Chris, what's the little washer / nut thing you used on the rear screw? Couldn't quite make it out in the video. Ta! Quote Link to comment Share on other sites More sharing options...
Premium Members chris fawcett Posted March 18, 2015 Premium Members Report Share Posted March 18, 2015 That's a little threaded washer that Tiffen gives away with its rigs. They also sell them for a couple of $. You can make something similar, and every bit as good, or better, by taking any screw with the right size head to slot into your dovetail, and a very thin nut that fits into the rear recess in the camera. Some vigorous use of a metal file will probably be required to make it right. I believe Peter Abraham was considering making these for his longplate. Perhaps he'll chip in. This is indeed, as described, a hack, but it is the simplest, lightest, lowest, and cheapest solution! All the best, Chris Quote Link to comment Share on other sites More sharing options...
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