Camera slider

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A camera slider (also camera slider system or camera slider ) is understood to be a system based on slide bearings with which cameras can be moved on a straight path. Lubricant-free plain bearings that have no measurable transition from static friction to sliding friction enable the camera to be pushed smoothly. A camera slider can be compared to a dolly in terms of its use . Similar systems are made by Glidetrack and Kessler Crane.

Areas of application

A camera slider has a rail width between 2 and 10 cm. Systems up to 4 m in length are particularly suitable for applications where a dolly would be too big and heavy. The rail can be screwed directly onto a camera or light tripod, placed on the ground or otherwise mounted (e.g. in front of a car, between two trees, etc.)

The camera slider system is safer than a dolly, as the slide grips around the rails and cannot slide off even when it is tilted. This enables new tracking shots. In addition, the system is light and is perfect for mobile use. The system is also used in the studio.

construction

These systems are mostly based on slide rails that are used in industrial purposes.

design type

There are different structures depending on the choice of system. A camera slider usually consists of a rail and a carriage with four dry slide bearings . Parking brakes or motor systems are also available. Motor systems are currently widespread, especially on the American market. A motorized camera slider can be used to create so-called time-lapse trips . The slide is pulled very slowly over the rail with a specially geared motor. The plain bearing is adjacent to the bearings, the most commonly used in machine and equipment bearing designs.

In the plain bearing , the two parts moving relative to one another are in direct contact. They slide on each other against the resistance caused by sliding friction. This can be kept low by choosing a low-friction material pairing, by lubrication or by creating a lubricating film (full lubrication) that separates the two contact surfaces.

advantages

  • A camera slider is light, lubricant-free and, thanks to its sliding bearing construction, has almost no starting resistance.
  • It is particularly suitable for taking pictures in mountains
  • It is also used as a cheaper alternative to a dolly .

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