Premium Members Marco Dardari Posted January 17, 2012 Premium Members Report Share Posted January 17, 2012 Someone knows the difference between G50/70 and new G50X/70X arms? Quote Link to comment Share on other sites More sharing options...
Premium Members Matteo Quagliano Posted January 17, 2012 Premium Members Report Share Posted January 17, 2012 Hi Marco, where did you read this? I'm quite curious but on the site nothing mentioned. Quote Link to comment Share on other sites More sharing options...
Premium Members James Davis Posted January 17, 2012 Premium Members Report Share Posted January 17, 2012 Jerry Holway mentioned about them in a recent forum post: http://www.steadicamforum.com/index.php?showtopic=15133&st=0 Quote Link to comment Share on other sites More sharing options...
Premium Members Matteo Quagliano Posted January 17, 2012 Premium Members Report Share Posted January 17, 2012 Thanks James. Quote Link to comment Share on other sites More sharing options...
Premium Members Robert Starling SOC Posted January 17, 2012 Premium Members Report Share Posted January 17, 2012 Garrett promised to send me a demo G50x to test when I saw him at CES last week. I look forward to trying it out. Robert Quote Link to comment Share on other sites More sharing options...
Premium Members Jerry Holway Posted January 17, 2012 Premium Members Report Share Posted January 17, 2012 The differences between the G50/70 and G750X/70X arms are in the trunion and other bearings, and there are also some subtle geometry changes to improve the isoelastic response. Everyone should give them a try. Jerry Quote Link to comment Share on other sites More sharing options...
Premium Members Marco Dardari Posted January 18, 2012 Author Premium Members Report Share Posted January 18, 2012 Matteo, I read in the pricing list of steadicam models. thanks Robert, James and Jerry. Quote Link to comment Share on other sites More sharing options...
Premium Members Rob Vuona SOC Posted January 18, 2012 Premium Members Report Share Posted January 18, 2012 The differences between the G50/70 and G750X/70X arms are in the trunion and other bearings, and there are also some subtle geometry changes to improve the isoelastic response. Everyone should give them a try. Jerry Jerry, Does that mean the "Stiction", (is that a word), problem that we all encountered has been eliminated? Quote Link to comment Share on other sites More sharing options...
Premium Members Eric Fletcher S.O.C. Posted January 18, 2012 Premium Members Report Share Posted January 18, 2012 Does that mean the "Stiction", (is that a word), problem that we all encountered has been eliminated? Yes that is a word, you could also use hysteresis Iso-elastic is a economic term not a term when dealing with springs and suspension Quote Link to comment Share on other sites More sharing options...
Premium Members Jerry Holway Posted January 18, 2012 Premium Members Report Share Posted January 18, 2012 Eric, I beg to differ. In addition to its adapted use for economics, isoelastic has a primary physical definition... and all this time I thought Garrett or someone at Cinema Products had invented the term. Iso-elastic - Wikipedia, the free encyclopedia en.wikipedia.org/wiki/Iso-elasticIn engineering, iso-elastic refers to a system of elastic and tensile parts (springs and pulleys) which are arranged in a configuration which serves to isolate ... (sorry, the site is down today...) isoelastic [ahy-soh-i-las-tik] i·so·e·las·tic [ahy-soh-i-las-tik] Show IPA adjective Physics . noting or pertaining to a substance or system exhibiting uniform elasticity throughout. Origin: iso- + elastic Related forms non·i·so·e·las·tic, adjective Dictionary.com Unabridged Based on the Random House Dictionary, © Random House, Inc. 2012. Cite This Source | Link To isoelastic so much for a 2 second search on google.... first page of results, lots of others using the term for physical mechanisms More importantly, to Rob's question, yes, the stiction issue is gone. Jerry Quote Link to comment Share on other sites More sharing options...
Premium Members Eric Fletcher S.O.C. Posted January 18, 2012 Premium Members Report Share Posted January 18, 2012 Eric, I beg to differ. In addition to its adapted use for economics, isoelastic has a primary physical definition... and all this time I thought Garrett or someone at Cinema Products had invented the term. Iso-elastic - Wikipedia, the free encyclopedia en.wikipedia.org/wiki/Iso-elasticIn engineering, iso-elastic refers to a system of elastic and tensile parts (springs and pulleys) which are arranged in a configuration which serves to isolate ... (sorry, the site is down today...) Jerry, the Wikipedia reference was written by someone from Tiffen, Dictionary.com spiders wikkipedia for definations. Nice try. We already went over this in the 3A arm thread. And yes if you would like to discuss this or how arms operate further I'm your huckleberry Quote Link to comment Share on other sites More sharing options...
Premium Members Michael Wilson Posted January 18, 2012 Premium Members Report Share Posted January 18, 2012 More importantly, to Rob's question, yes, the stiction issue is gone. I wish that the stiction issue would have actually been acknowledged by Tiffen when it was happening to people with the normal G series arms. I lost a lot of sleep over that bouncing arm. I hope some people at tiffen did too. Quote Link to comment Share on other sites More sharing options...
Premium Members Mark Schlicher Posted January 18, 2012 Premium Members Report Share Posted January 18, 2012 http://www.google.com/patents/US5435515?printsec=abstract#v=onepage&q&f=false http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1438013/ Quote Link to comment Share on other sites More sharing options...
Premium Members Eric Fletcher S.O.C. Posted January 18, 2012 Premium Members Report Share Posted January 18, 2012 Okay, now you do realize that Tiffen uses it as a trade or service mark and that the definition has changed several times over the years. Quote Link to comment Share on other sites More sharing options...
Premium Members Matteo Quagliano Posted January 18, 2012 Premium Members Report Share Posted January 18, 2012 Is there a way to get the old G series fixed? May be an upgrade. It would be really good. maqu Quote Link to comment Share on other sites More sharing options...
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