Video Technology Basics

Video Technology Basics

The VFX artist and video debunking expert, Captian Disillusion has created a handful of short videos covering the basics of television technology. CD / Aspect Ratio Captain Disillusion – 3m 11s CD / Frame Rate Captain Disillusion – 4m 12s CD / Resolution...
Why is TV 29.97 Frames Per Second (in North America)?

Why is TV 29.97 Frames Per Second (in North America)?

Matt Parker explaines why the NTSC world got stuck using a frame rate of 29.97Hz instead of 3ohz. It was all due to the introduction of compatible colour and needing to avoid interference. The PAL system used outside of North America was based on a whole new 625-line...
Analogue Colour Television (NTSC/PAL)

Analogue Colour Television (NTSC/PAL)

The history of analogue colour TV is somethign every broadcast engineer should have an appreciation of because so much of the technology we deal with today has been designed to work around technical constraints which can be traced back to analogue systems. These...
Rolling Shutter Explained

Rolling Shutter Explained

When a camera captures fast movement it can result in strange artefacts becoming visible due to the exact time at which the camera’s sensor samples the light coming through its lens. There are two main ways in which a camera samples the scene:  Rolling Shutter...