A screencast is a digital recording of computer screen output (or video screen capture), together with spoken instructions, that demonstrates how to perform tasks using a particular piece of software, such as the NSO's LTImage program. For each screencast, you have the option of watching a quick streamed version, or downloading a higher-quality MP4 file that will run on most video platforms, such as Windows Media Player or Apple Quicktime.

The LTImage screencasts guide users through specific tasks to manipulate image data from the Liverpool Telescope. These tasks are as follows:

Task	Description of LTImage Task	Direct Stream	MP4 Video File
1	Open, Scale and Save	View	Download
2	Open, Scale, False Colour and Save	View	Download
3	3-Colour Imaging, Alignment, Shade and Contrast	View	Download
4	Open Multiple Images, Scale and Blink	View	Download
5	Image Properties, Measure Size and Distance	View	Download
6	Examine, Zoom and Measure Brightness	View	Download