How to use it
- Enter how long you will shoot, in hours and minutes.
- Enter the interval between photos in seconds and pick the frame rate of your final video.
- Enter the size of one photo to see how much card space you need.
How it works
- Photos = whole intervals in the shooting time = floor(time ÷ interval)
- Clip length = photos ÷ frame rate
- Speed-up = shooting time ÷ clip length
- Storage = photos × file size ÷ 1000 (GB)
Worked example
Two hours of shooting with a 5 s interval: 7200 ÷ 5 = 1440 photos. At 24 fps the clip lasts 1440 ÷ 24 = 60 s, so time is sped up 120 times. At 25 MB per RAW file you need 1440 × 25 MB = 36 GB.
Tips
- Keep the interval longer than your exposure time, including long-exposure noise reduction if it is on.
- Check the battery too: a shoot of several hours often needs a power bank or a dummy battery.
- Shoot more than you need so you can trim the start and end of the clip.