Moving Images
https://www.sqa.org.uk/files/nu/F3T612.pdf
Software
You will have access to DaVinci Resolve in the class
Resolve is a professional NLE ( Non-linear Editing ) suite used across the Film Industry.
You can cut and move footage in a similar way to cutting and moving audio in Reaper.
Formats
MPEG 4 Motion Picture Experts Group
.mp4 H.264 is the most common format for transmission online
H.265 a smaller format but takes more processing power to encode
MPEG 2 Used to master DVD Video ( 4.7 GB ) and Blu-ray Disc ( 50 GB )
WebM An opensource alternative to MP4
Quicktime .mov, Apples propriatry video format
MKV Matroska is an open-source standard mainly used for Blu-Ray rips
Video file are complicated by the facts that we have containers ( file names ) and codecs, which can be different.
For example, you can store a H.264 MP4 inside a .mov
Video containers guarantee compatibility with several codecs.
Codecs compress and decompress video information.
RAW RAW Video can be recorded on high end cameras - RAW files are very large and can be difficult to work with - however, they represent the maximum possible quality and colour depth.
Blackmagic RAW Apple ProRes RAW Cinema DMG Magic Lantern MLV
Resolutions
The resolution is the number of pixels on screen at any one time
720 x 480 NTSC 720 x 576 PAL 1280 x 720 HD 1920 x 1080 FHD 3840 x 2160 4K ( Consumer ) 4096 x 2160 4K ( Pro )
Frame Rates
12 Animation 24 Film 25 PAL 48 HFR 30 NTSC 50 PAL 60 Slow-motion
Filming at a high frame rate allows us to reduce the speed of the played back footage in order to create a slow motion effect.
Slow motion is generally used to increase the emotional impact of a scene or to highlight small details that would ordinarily be missed.
Cameras
Depending on your location you will be exposed to different cameras - the equipment available in class will be
Nikon L340 Bridge Camera Nikon D3300 Canon Legaria HF G40
All Digital Cameras rely on a CCD ( Charge-Coupled Device ) in order to convert light into an electrical signal.
All of these cameras are capable of recording good quality video
A selection of external microphones, lights and cages are available
DSLRs
A Common way to capture video is using a DSLR ( Digital Single-Lens Reflex ) due to their relatively affordable prices and good quality images.
Increasingly Mirrorless and Phone Cameras are becoming viable for good quality video capture.
Common brands for both DSLR and Mirrorless Cameras include;
Nikon Sony Alpha Canon Panasonic Lumix
SD Cards
Not all SD Cards are created equal - contemporary cards are measured in Gigabytes ( GB ).
SD Cards also have different speeds, which can be confusing - SDXC is required for FHD ( Full HD Video ).
Broadcast Cameras Historically broadcast cameras did not need to record footage, only broadcast it.
This has led to them developing independently for news and live television.
Common Broadcast cameras include;
Sony PDW Range Sony EX3 Range Canon XF Range
Dedicated Cinema Cameras
Historically the cameras used for film have been very expensive, however it is now viable for a small company or freelancer to buy or rent a cinema camera. Cinema cameras generally require a lot of additional equipment to use - they are not 'point and shoot'.
Common brands include;
RED Blackmagic Design Cinema Camera Sony CineAlta Arri Alexa Panavision Genesis
Chroma Keying
Chroma Keying ( Green / Blue - Screening ) allows us to replace all the pixels of a certain colour with another image. This is commonly used to switch in a replacement background or overlay.
Transitions
Transitions should be used appropriately. A fade to black or dissolve indicates the passage of time.
Quick cuts maintain location.
An establishing shot ( external ) can be used to cement location.
Framing
The subject of the scene should be on the left looking right. Characters should respect screen direction and move from left to right.
Rule of thirds
The rule of thirds is a simplification of the Golden Ratio, in short it estimates the ratios that human being intrinsically find appealing in nature. By lining our subjects up with one of the cross sections on the above grid we can have confidence that our composition will have appeal.
Symmetry
Symmetry can be tempting - as it can be visually appealing, however, it can also appear mechanical or artificial. If you are unsure it is best to avoid symmetry in film.
POV ( Point of view )
Point of view footage, sometimes called First-Person footage, shows the action from a characters point of view. This can be used to create a sense of authenticity and is often used in found footage movies.
Titles
Titles are graphics and text used to inform the viewer about what the are watching. They commonly include an introduction - location name - Characters name - and credits.
Simple Titles are often more effective than overly complicated Titles.
Colour Grading
Colour grading is the process of balancing the colours on screen to give the best output. This process is similar to adjusting the colour / brightness / exposure in photo editing software.
Compression Techniques
Video compression techniques encompass Image and Audio techniques.
Since some frames, or large areas of frames do not differ significantly from one another there are some compression artifacts unique to video.
As the file expects us the watch the video in linear sequence, unexpected scrubbing can produce unexpected artifacts.
HDMI
These days we only have to worry about one video cable - HDMI ( High-Definition Media Interface ).
However - there are different implementations of HDMI which give different results.
HDMI 1 specification supports 1080p at 60 fps
HDMI 1.4 specification support 4k at 30 fps
HDMI 2.0 specification supports 4k at 60 fps
Rendering
Software Video Editing has many advantages - such as being able to randomly access scenes and video.
However, a large disadvantaged is the need to render your footage when you are finished.
Rendering is a CPU, RAM and GPU intensive process - so in order to edit video we should seek out the highest spec computer we can find.
Script
If you have any spoken elements, it is important to write a script or screenplay.
This could include multiple characters or it could just detail a short voice-over
Storyboard
As part of your planning process it is essential to create a storyboard.
A storyboard is a visual layout of how how expect your film to play out.
Extra information including audio and camera movements must be included.
Video Editing Level 6
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