Why does shutter speed matter in video

Also known as FPS frames per second , the most common frame rates are 24, 25, and 30 frames per second. Shutter speed is the amount of time that each individual frame is exposed for.

In video, shutter speed is almost always in fractions of a second. The number used in setting your shutter speed refers to the denominator of that fraction. Frame rate can be mistakenly equated with shutter speed.

This is not the case. As explained in the video above, the typical frame rate we shoot at is around 24 frames per second, and sometimes 25 or As a rule of thumb, you want your shutter speed to be approximately double the number of frames per second that you are recording. Even though you generally set shutter speed to be double the number of frames per second, you can achieve some stylistic effects by straying from the norm. Shutter speed will have a noticeable effect on the look of your video, especially when it comes to motion.

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Understanding Frame Rates vs Shutter Speed. By: Ron Dawson July 30, Cinematography. Share on twitter. Share on facebook. Share on linkedin. Table of Contents. Confusing comparisons Frame rates vs.

For the life of me, I could not figure out why. It took me a month of research to finally find the answer thanks to the amazing filmmakers on CreativeCow. FCP7 used the notation But what FCP was calling Film motion picture cameras use a rotary disc shutte r to achieve their exposure times, with shutter speed indicated as a shutter angle.

Video is different. Using high shutter speeds with video content does freeze motion on each frame, resulting in very crisp individual images. However, when played back at normal video frame rates, the motion can appear hyper-realistic and gives give a very jittery, unsettled feeling to the viewer.

The most visually-pleasing video content has some amount of motion blur in each frame, giving a smoother, more cinematic look to the footage. See the video above for examples of motion blur at varying shutter speeds. The following frames show how the motion of a spinning bicycle wheel is blurred at varying shutter speeds.

Since digital still and video cameras do not use a rotary shutter, some shutter speeds may not be available. To achieve normal motion blur in your footage, you can use the closest shutter speed.

Because audiences are conditioned by viewing decades worth of movie content, they anticipate video content with a cinematic look. Faster shutter speeds can be used for dramatic effect. Faster shutter speeds can also be essential when filming fast-action sports or fast-moving wildlife. When your scene involves dramatic camera moves like panning or tilting, be aware of shutter speeds and increase them if necessary.

Increasing the shutter speed can help in this situation. In still photography, neutral density filters are used to slow down shutter speeds for creative effects like creating motion blur in water or clouds. In videography, neutral density filters are a far more critical tool that are necessary to maintain the desired aperture and shutter speed in brightly-lit scenes.

Cinematographers often want to choose an aperture and depth-of-field for a particular scene.