Before starting to record video, the fundamental decision to make is which movie-recording size to use. This is largely determined by three functions: the image size or resolution, the frame rate (how many images are recorded each second) and the level of compression.
The choice of resolution is key, as this determines how much detail can be recorded, with 4K being offered by the majority of current cameras. There are, in fact, two 4K standards: TV-friendly 4K UHD (3,840 x 2,160 pixels) and a wider, more cinematic 4K ‘DCI’ (4,096 x 2,160). If you have space available on your memory card or external recorder, it pays to shoot at the highest resolution your camera allows, as you can always reduce this later. That said, shooting at a lower resolution usually…