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…
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…
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…