Camera rig

A method of using an optical instrument holding device, the method comprising:

• fastening the optical instrument to a first portion of a string, wherein a second portion of the string is attached to an adjustable counter force device in order to provide a counter force on the string;
• and
• utilizing a harness, wherein the harness is operally connected to an arm, the arm comprises a first portion being fixed in relation to the harness, and a second portion for supporting of the string,
• adjusting the counter force applied to the string by moving a lever arm of the counter force device such that the lever arm pivots relative to a support via at least a second point attached to a first point of the string and a third point attached to a second point of a spring, wherein a first point of the spring pivots relative to the support, and the second point and/or the third point of the lever arm moves along the lever arm.

A camera system, the system comprising:

• a camera;
• a harness;
• an arm;
• a string, wherein the arm comprises a first portion being fixed in relation to the harness, and a second portion for supporting of the string, and the string comprises a first portion and a second portion, the first portion of the string being arranged to fasten to the camera;
• and
• an adjustable counter force device, wherein the second portion of the string is attached to the adjustable counter force device in order to provide a counter force on the string, and the adjustable counter force device comprises:
• a spring,
• a support,
• a lever arm, wherein the lever arm comprises a first point pivotably attached to the support, a second point attached to a first point of the string, and a third point attached to a second point of the spring, wherein a first point of the spring is pivotably attached to the support, and the second point and/or the third point of the lever arm is configured to be movable along the lever arm such that a counter force exerted by the counter force device on the string is adjustable.