HDMI and SDI are both video interfaces. One is considered amateur or prosumer and the other is a professional interface. Let’s start with SDI. SDI (Serial Digital Interface) The SDI specification was introduced in 1989 by the Society of Motion Picture and Television Engineers, aka SMPTE. SDI connections have a
Video shot with a DSLR or mirrorless camera is recorded linearly. Most of the video’s information is in the brightest f/stop, leaving very little data for the shadows. Log formats smooth out this uneven distribution of image information. Understanding linear video is the foundation for getting to know and love
Frame rates are the number of pictures shown per second in a video. Understanding them starts with choosing which rate will be the “normal” one. Sound movies set the frame rate standards Silent films had vastly different frame rates. Those cameras were cranked by hand and some camera operators were
The number of video size formats available in even entry-level still cameras can be really challenging to understand. Here is what they are, where they came from and why. Aspect ratios These are the dimensions of a video screen shown as width to height. Standard television had an aspect ratio
