Auto exposure on a high speed camera – why?

View Auto exposure on a high speed camera – why?

When a set up takes a while to set up and you’re only filming for a fraction of a second, why would you want to use auto-exposure? Well, even in a fraction of a second, the lighting requirements might change quite dramatically. Consider filming an airbag deploying (why are dashboards always black and airbags always…

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Specifying a high speed camera for a microscope

View Specifying a high speed camera for a microscope

Most high speed cameras can be fitted to a microscope with the use of a C-mount adapter, but what makes some cameras more suitable than others? Firstly, the physical size/ shape. Does the camera fit without binding on the body of the microscope, and is it small enough to be supported just by the C-mount without…

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Particle Image Velocimetry – see the flow

View Particle Image Velocimetry – see the flow

Particle Image Velocimetry (PIV) is an optical method of flow visualisation, where particles are tracked, to form a vector diagram, showing the flow pattern and flow rates of a fluid. It is generally carried out in 2D, but 3D PIV is a powerful tool for more advanced users. PIV can be carried out in liquids…

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Lighting

View Lighting

High speed imaging requires a short shutter speed, and therefore a lot of light. Traditional tungsten lighting produces high quantities of heat, which can cause tremendous problems. LED lighting offers significant benefits over tungsten lights, not only as they output negligible heat, but also: White LED lights are daylight coloured so can be mixed with…

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