Set talk Words you’ll hear at this stage. Explained once, then we just use them.
rolling the camera is recording.
180° the shutter is open for half of each frame; at 25 fps that is 1/50 s.
ND neutral density filter; cuts light without touching shutter or aperture. Departments Everything decided at the moment of recording: how much light the lens lets in, how long the sensor is exposed, how many frames per second and how the signal is written. These are the decisions that are hardest to fix in post-production.
Reading Open the department: Shooting →
From the kit The tools for this stage, right here. They run in your browser and send nothing.
Frame rate explorer The same motion sampled at 24, 25, 30, 50, 60 and 120 frames per second, side by side. Tool page
Frame rate comparison CAM A 00:00:00:00
Monitor A: frame rate 24fps 25fps 30fps 50fps 60fps 120fps
CAM B 00:00:00:00
Monitor B: frame rate 24fps 25fps 30fps 50fps 60fps 120fps
Measuring your display’s refresh rate…
The moments at which the camera records a frame during the first 100 ms. Each tick = one frame. Timeline from 0 to 100 milliseconds with frame marks for 24, 25, 30, 50, 60 and 120 fps 0 ms 25 ms 50 ms 75 ms 100 ms 24 fps 41.67 ms 25 fps 40 ms 30 fps 33.33 ms 50 fps 20 ms 60 fps 16.67 ms 120 fps 8.33 ms Shutter angle explorer A rotary disc from 45° to 360°: exposure time per frame and the motion blur it produces. Tool page
Shutter angle and motion blur Rotary shutter: the open sector lets light through to the sensor sensor 180° open sector
Shutter angle 45° 90° 180° 270° 360°
Fine-tune the angle: 180° Frame rate 24 25 30 50 60
exposure time = (angle ÷ 360) × (1 ÷ fps)
A single frame of an object moving at one picture width per second. Length of the streak = speed × exposure time. ← Prep Light & sound →