What shooting modes do feature films adopt?
Most feature films are shot in 24 frames per second and that's because it gives a cinematic look to the footage. The 24 frames per second add a little motion blur to the footage and that matches to our naked vision. However, for slow-motion filmmakers make use of different frames per second. Let's have a look at the different frames per second.
Frames per second is the number of frames that are captured per second, the higher the FPS the higher the number of frames. Having more frames per second has two advantages, it makes the footage more smoother without any motion blur and second, it can be slowed down more. However, to create a cinematic look it is necessary to have some motion blur to our footage because our naked vision has some motion blue in it too. Don't believe me? Try shaking your palm in front of your eyes! That's why most feature films are shot in 24 FPS to make them more cinematic and real. If the filmmaker wants slow motion that's when the frames per second increase and later in post-production it's slowed down.
I watched a couple videos about frames per second and one of the videos are below.
What's the 180 degree shutter angle rule?
The 180-degree shutter rule is one of the oldest modes used in film making and several movies have been made with this mode. This rule makes use of a small formula and is related to Frames per second and the shutter speed.
FORMULA : Frames per second x 2 = 1 / the shutter speed.
Most photography cameras that have a video shooting option have only the shutter speed as the option while cinema cameras have the option of shutter angle too. This 180 degree shutter angle rule allows the light to enter for half of the time and the other half of the time it doesn't. This rule allows the footage to have that motion blur in it and in a cinema camera once the 180 rule is set, it automatically correlates with the frames per second. This rule has been used throughout the history of cinema and it gives the cinematic look to it.
But however, even though this rule allows the videos to have motion blur in them, sometimes it might be difficult to apply it in exterior locations. To create the motion blur, the fps and the shutter are locked but in some situations where there is too much light, the cinematographer might have to adjust the aperture and the ISO in order to get the best quality without any details missed. But if the scene requires a set aperture that's when becomes difficult to follow this role because the video might become over exposed and may lose details. In order to solve this issue filmmakers make use of ND filters which allow them to, follow the rule, get good motion blue and not lose any details. But these ND filters may be expensive.
I watched a couple of videos regarding the 180 degree shutter angle rule and one of it is this.
FRAMES PER SECOND & SHUTTER SPEED
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