Getting Started
Video technical information you need to know :)
"Pixels"
All digital video frame and digital photo is made up of tiny squares called
"pixels". Varying colours of these tiny pixels are very close together and trick the eyes and brain into believing you are looking at a complete image, you won't see them as coloured squares unless you "scale" or increase the size of the image.
"Frame Resolution"
The total number of pixels, both horizontally and vertically, determines the size of the image and the shape.
The size of the video image is determined by the total number of pixels making up an individual frame (horizontal number pixels X vertical number pixels.)
This is called the "Frame Resolution"
The video "Frame Resolution" we will be shooting and editing will usually be
1920 x 1080, known as High Definition (HD) video.
That is, 1920 pixels horizontally X 1080 pixels vertically.
The number of pixels determines the frame "aspect ratio" (or shape) of the frame. 1920 X 1080 Video frame has an aspect ratio of 16x9.
In other words, for every 16 pixels across the screen there are always 9 pixels vertically.
Ensuring your "Sequence Resolution" matches the resolution of your video clips is the critical first step. to ensure the "editing sequence" matches the video clips and "fit" within the program monitor
"Frame Rate" - Expressed as "frames per second" (fps)
What is frame rate?
Video consists of a series of individual still images (think of them as photos).
When played rapidly in "sequence" the eye and brain are fooled into "perceiving" or "seeing" motion. This optical illusion of motion is called "Persistence of Motion".
To achieve the illusion of motion the individual images must be played back in sequence at a "rate" or speed so the eye and brain perceive motion rather than individual images. When individual frames are played back at about 16 frames per second (fps) the eye begins to see smooth motion rather than still images.
Television Frame Rate
In the 1930's, television adopted a frame rate of 29.97 fps
This was chosen for technical reasons, in large part based on the 60 cycle rate of household electricity. However, the "frame rate" for today's television can vary depending on the capabilities of the camera and how/where the video clips will be used.
Television Green Screen Editing Frame Rate
When shooting for these visual effect a faster frame rate is desirable (but not necessary). It is recommended that cameras are set to shoot at 60 fps which will result in each frame having less visual smear (motion blur). The resulting clearer frames will have cleaner edges for extracting a subject from a colour background.
Slo Motion Frame Rate (when possible)
When you intend to playback video clips in slo motion it is best to record at 60 fps. This will result in clearer images for each frame and visually smoother playback. That is the result fo capturing twice as many frames per second (60) which results in less motion blur between frames.
Motion Picture Frame rate
When motion picture films began in the early 1900's the images were filmed and viewed at 24 fps. In fact, it is still the current "frame rate" of today's motion pictures.
Some video productions choose to shoot at the film frame rate of 24 fps. This is to help achieve a visual look that is closer to what is often referred to as the "film look". This frame rate has a subtle visual impact on how the video looks. Each frame will have more motion blur and results in a more realistic (less electronic) look for the video.
Video technical information you need to know :)
"Pixels"
All digital video frame and digital photo is made up of tiny squares called
"pixels". Varying colours of these tiny pixels are very close together and trick the eyes and brain into believing you are looking at a complete image, you won't see them as coloured squares unless you "scale" or increase the size of the image.
"Frame Resolution"
The total number of pixels, both horizontally and vertically, determines the size of the image and the shape.
The size of the video image is determined by the total number of pixels making up an individual frame (horizontal number pixels X vertical number pixels.)
This is called the "Frame Resolution"
The video "Frame Resolution" we will be shooting and editing will usually be
1920 x 1080, known as High Definition (HD) video.
That is, 1920 pixels horizontally X 1080 pixels vertically.
The number of pixels determines the frame "aspect ratio" (or shape) of the frame. 1920 X 1080 Video frame has an aspect ratio of 16x9.
In other words, for every 16 pixels across the screen there are always 9 pixels vertically.
Ensuring your "Sequence Resolution" matches the resolution of your video clips is the critical first step. to ensure the "editing sequence" matches the video clips and "fit" within the program monitor
"Frame Rate" - Expressed as "frames per second" (fps)
What is frame rate?
Video consists of a series of individual still images (think of them as photos).
When played rapidly in "sequence" the eye and brain are fooled into "perceiving" or "seeing" motion. This optical illusion of motion is called "Persistence of Motion".
To achieve the illusion of motion the individual images must be played back in sequence at a "rate" or speed so the eye and brain perceive motion rather than individual images. When individual frames are played back at about 16 frames per second (fps) the eye begins to see smooth motion rather than still images.
Television Frame Rate
In the 1930's, television adopted a frame rate of 29.97 fps
This was chosen for technical reasons, in large part based on the 60 cycle rate of household electricity. However, the "frame rate" for today's television can vary depending on the capabilities of the camera and how/where the video clips will be used.
Television Green Screen Editing Frame Rate
When shooting for these visual effect a faster frame rate is desirable (but not necessary). It is recommended that cameras are set to shoot at 60 fps which will result in each frame having less visual smear (motion blur). The resulting clearer frames will have cleaner edges for extracting a subject from a colour background.
Slo Motion Frame Rate (when possible)
When you intend to playback video clips in slo motion it is best to record at 60 fps. This will result in clearer images for each frame and visually smoother playback. That is the result fo capturing twice as many frames per second (60) which results in less motion blur between frames.
Motion Picture Frame rate
When motion picture films began in the early 1900's the images were filmed and viewed at 24 fps. In fact, it is still the current "frame rate" of today's motion pictures.
Some video productions choose to shoot at the film frame rate of 24 fps. This is to help achieve a visual look that is closer to what is often referred to as the "film look". This frame rate has a subtle visual impact on how the video looks. Each frame will have more motion blur and results in a more realistic (less electronic) look for the video.
Basic editing tutorials for Premiere Pro
Creating a new "Project" and editing "Sequence" that matches source video.
Good Tutorial to get you started
Overview/Review of Premiere Pro - Approx. 20 min.
More Beginner Tutorials
This series of tutorials below was created by "Creative Cow"
You can watch the entire playlist series. Very detailed
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