- The size of picture I.e. how many pixels dictated the Image quality and determines the output HD, UHD and 4K etc.
- Working out how many pictures you can capture or will have at the end can be dictated by a few factors like camera battery life, what it is you are capturing, what you would like the final timelaps to look like etc
An example I can run through with you is a short one I created with a go-pro. The go pro I used could take a maximum size of image of 2592 x 1944 so the resolution would be 5Mega pixel.
The next point I took into consideration was the length of clip I required 30 secs. I wanted to display the images captured at 25 fps meaning that each clip picture would be displayed for 0.04 of a second. I did the following maths 30 secs x 25 fps = 750, the amount of images I needed. Luckily my go-pro battery lasted about 3.5 hours, again I did some more maths 3.5hrs x 60mins = 210 mins. therefore 210/0.5 (30secs) = 420 pictures, so you can see i am over half way there giving me room for a little editing as the building process i wanted to capture was going to be over 2 days leaving me with a final total of 844 images.