In order to accurately calculate damping times, we have been measuring the moment of inertia (MOI) for the various bits of a tripod setup. In the last post we looked at the MOI of the tripod legs. Here, I am going to be using the methodology described for measuring the MOI of a camera to […]
Read MoreMonth: August 2019
Tripod Moment of Inertia
In the previous post, I demonstrated my methodology for testing the moment of inertia (MOI) for a tripod. Initially, we were trying to make the assumption that the inertial mass of the tripod was irrelevant towards calculating the damping time of a vibration. The data in this post suggests that this is not the case, […]
Read MoreMeasuring a Tripod’s Moment of Inertia
Our goal in measuring the moment of inertia (MOI) (also known as angular mass) of various camera systems and supports is to be able to make a reasonable calculation of damping time based on the stiffness and damping characteristics of the tripod in use. In the previous post, we discussed the methodology for measuring the […]
Read MoreMethodology for Measuring the Camera’s Moment of Inertia
In the previous post on calculating damping time, I showed that in order to complete our analysis, we needed to know what the moment of inertia for the cameras in question are. The motions of a tripod are predominantly rotational, and so instead of just using the weight of the camera and lens, we need […]
Read MoreCalculating Damping Time
So far on this site, we have focused most of our research on understanding the relationship between tripod stiffness and conditions. Damping however, is also incredibly important but affects tripod performance in a very different way. In this post I want to lay the mathematical foundation for the testing we will do towards understanding how […]
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