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Quality control (QC) during the production phase is perhaps the most business-critical of all the QC types. It provides the first opportunity to flag issues that may be caught further downstream in the production process.

Maximizing production efficiency at scale requires automation and streamlined workflows as well as effective global collaboration across multiple practitioners, vendors and crew members. Successful collaboration relies on communicating QC notes promptly and accurately with recognizable consistent terminology.

In order to support streamlined QC workflows, Netflix partnered with a group of global dailies professionals and performed a number of interviews within the industry to create a Production Quality Control Glossary; a database of taxonomy and definitions that are consistent and applicable to all projects regardless of type, location, or scale. 

For a downloadable version or translated descriptions please reference this CSV.

For more information about this glossary see: The Production QC Glossary Guide

The Production QC Glossary
CODE - G GRIPS Description
G-100_082 Camera bump/Vibration “Camera bump” is the unintended movement of the image due to camera operator error or camera support.
G-101_082 Micro vibration Noticeable high frequency vibrations creating visible issues from a moving vehicle, large object, or gimbal
G-102_082 Remote head/gimbal judder Noticeable judder in the movement of a remote head or camera gimbal due to an unbalanced rig or motor issues with the rig
G-103_082 Abrupt camera movement stop An abrupt and unintended camera movement stop
CODE - I IMAGE Description
I-100 Frame Rate conversion lag "Conversion Lag" is an artefact generated by converting a segment of video from one frame rate to another.
I-101_070   Frame Rate conversion combing
I-102_070 Frame Rate conversion ghosting A “doubling of the image” occurs when a framerate conversion is not properly done. It is particularly visible in pause/frame-by-frame.
I-200 Incorrect image format transform An unwanted image format transform
I-201 Incorrect scaling resolution When the output scaling resolution is different from the scaling agreed for the input format, possibly resulting in a unwanted change to the aspect ratio of the image.
I-202 Incorrect crop/extraction When the crop or extraction applied is not set as agreed for the input format on the show.
I-203 Incorrect aspect ratio padding When incorrect letterboxing or pillar boxing has been applied to the image.
I-300 Image processing artefact Undefined but visible image processing artefact
I-301 Wrong video range conversion (Legal/Full) The video signal is not well interpreted/exported by the software which could result in either a washed out image or an image with black crush and white blown out.
I-302 Image stabilization warping "Warping” is usually the adverse effect of image stabilization where the frame compensation causes the image to shift in an unnatural way.
I-303 Aliasing "Aliasing" is a visual artefact caused by the limited spatial sampling during image processing and/or poor compression or a bad conversion. Object or text/graphic edges appear “jagged” or pixelated. Can also refer to a moiré (or “screen door”) pattern across certain parts of the image. This can be achromatic (it affects every color channel equally) or chromatic (it affects color channels independently).
I-304 Banding "Banding/Posterization" is when low color bit depth results in defined “stepping” from one color gradation to another versus a smooth, continuous gradation.
I-305 Wrong color transform(s) applied When the wrong color transform(s) are applied resulting in a image that does not accurately represent creative intent.
I-400 Incorrect Image Metadata One or multiple metadata field(s) related to the image essence or the video container is incorrect.
I-401 Incorrect Reel ID metadata When the Reel ID metadata doesn't match the camera report, thus it is incorrect.
I-402 Incorrect Color Space Metadata When the color space metadata isn't filled properly and doesn't reflect the actual color space of the image essence.
I-403 Incorrect lens metadata The lens metadata information doesn't match the lens used on the shot. We suggest adding a suffix to indicate when the error refers to a specific lens axis: F for FOCUS, I for IRIS, Z for Zoom/Focal length (eg -F if the missing axis is Focus).
I-404 Inconsistent lens metadata The lens metadata is present but inconsistent throughout the clip (eg skip frames, stops half ways, starts half way). We suggest adding a suffix to indicate when the error refers to a specific lens axis: F for FOCUS, I for IRIS, Z for Zoom/Focal length (eg -F if the missing axis is Focus).
I-405 Missing lens metadata The lens metadata is missing on one or multiple axis. We suggest adding a suffix to indicate when the error refers to a specific lens axis: F for FOCUS, I for IRIS, Z for Zoom/Focal length (eg -F if the missing axis is Focus).
I-500 Generic Pixel Level Error Undetermined pixel level error
I-501 Debayer artefacts / debayer issues Issues caused by the debayer process or its setting.
I-502_069 Compression artefacts "Compression artefacting" is the adverse effect of image degradation where the image complexity exceeds the ability of the image encoder to retain a lossless quality.
I-503_093 Permanent Dead/Hot Pixel Error "Pixel Error" refers to one or several pixels in a frame which do not display the correct captured information as the pixels surrounding them and they appear either dark/black (dead pixel) or bright/white (hot pixel). This error refers to permanent dead/hot pixels that stay throughout an entire shot or more
I-504_093 Intermittent Dead/Hot Pixel Error "Pixel Error" refers to one or several pixels in a frame which do not display the correct captured information as the pixels surrounding them and they appear either dark/black (dead pixel) or bright/white (hot pixel). This error refers to intermittent dead/hot pixels that disappear during the shot
I-505_073 Pixelation / Quantization (Compression ratio) “Pixelation/Quantization” refers to visible, individual colored blocks within an image, often due to poor resolution scaling or rendering at lower bit depths.
I-506 Digital Snow/ digital dirt A digital interference/noise level on the image.
I-507_049 Enhanced video noise / Visible noise patterns Refers to footage that contains extraneous activity and/or visible distortion/pattern in grain structure.
I-508_078 Elevated black levels “Elevated Black Levels” can be used to describe measured setup video level being elevated/milky.
I-600_047 Chroma cross contamination Chroma cross contamination between the image channels is the improper bleeding of color values adjacent to each other in frame or enhanced noise/ over-saturation within elements in a shot.
I-601 Out of Gamut When a color cannot be reproduced on the mastering colorspace, it causes color artefacts on the final picture. For example, black dots on white lights, clipped colours, etc.
I-602_048 Color Contaminated blacks “Contaminated Blacks” refers to black levels that have additional saturation or enhanced noise/ blocking.
I-603 Color Contamination from UV/IR Extreme light wavelengths are affecting the image with noise or chroma contamination
I-700_078 File Container/Compression Error The file is corrupted and cannot be opened by any software.
I-701_078 Corrupted Codec The codec is corrupted and the file is not readable.
I-702_052 Black frame "Black frame" is a frame without any image information.
I-703_053 Dropped frame "Dropped Frame" refers to a single or sequence of frames which are missing or corrupted in the video essence.
I-704_055 Freeze frame "Freeze Frame" is a duplicate frame(s) within the sequence that contains no different information than the adjacent frame(s).
I-800 Miscellaneous anomalies A generic error to state that there is a problem with the video
I-801 Low Quality Footage (Archival) "Low Quality Footage" refers to an image that exhibits visual qualities lesser than the primary source image.
I-802 No metadata (image) There is missing metadata related to the video in one or multiple fields.
CODE - L Lighting/Sparks Description
L-100_076 Abrupt Image Luminance Shift / Flicker Refers to a change/multiple changes in the brightness levels within a shot/scene.
L-101 In-shot screen flicker A practical screen or display is flickering inside the captured scene.
L-102 Abrupt Lighting Shift/Variation When there's an abrupt change of light in the shot.
L-103 Visible haze Haze has shifted the look of the exposed image through takes, or does not match the main units look
L-104 Unwanted Light bleeding A light bleeds on the action of the shot.
L-105 Light source reflection in the scene A light source reflection which make the scene not usable.
CODE - C CAMERA Description
C-100 Generic Exposure Issues Images result over or underexposed either entirely or partially during the shot
C-101 Footage generally overexposed The OCF is being captured with considerable amount of data clipped in the high level values (highlights).
C-102 Footage generally underexposed The OCF is being captured with considerable amount of data clipped in the low level values (shadows).
C-103 Sensor overload (Black Sun) The sensor overloaded causing the image to become gray where it should be white.
C-200 Focus issues Focus is not perfect throughout the take(s).
C-201 Out of focus Focus rests outside of the ideal field for a long period of time.
C-202 Soft focus Focus is not perfectly sharp and it doesn't ever find its mark.
C-203 Focus varies Focus is not perfect during a move, but eventually finds its mark.
C-300 Generic capturing issue Something went wrong with the camera during a shot
C-301 Incorrect FPS / Speed When the framerate of the camera doesn't match with the intent of the scene.
C-302 Genlock issues The image is not properly genlocked with a master source
C-303 Rolling shutter issues The rolling shutter issues can be part of the image which are wobble, or skew. It can also be spatial aliasing, temporal aliasing including partial exposure.
C-304 Format change Change in sensor mode.
C-400 Generic Optical artefact The lens captured/created some artefact on the image
C-401 Visible optical filter The optical filter used on the camera is visible
C-402 Internal ND issue There is a visible internal ND filter that has not been adjusted properly.
C-403_047 Lens aberrations Chromatic or achromatic aberrations are caused by the lens on the image .
C-404_070 Optical ghosting Ghosting induced by the lens.
C-405_085 Lens Flare “Lens Flare” is the refraction of light through a camera lens, causing a flash and potentially a light glare to be visible in frame.
C-406_086 Lens Smudge/ Dirt or oil on lens "Lens Smudge" is dirt, oil, debris, etc. physically on the camera lens causing a visible artefact in the captured image.
C-407_085 Lens Glare "Lens glare" is a direct source pointed to the camera which will cause an excessive and uncontrolled brightness on a zone.
C-500_054 Generic Frame Edge Shading "Frame Edge Shading" is darkening along the edges or in the corners of the frame due to matte box or production flags being partially in frame.
C-501_054 Soft Lens/Edge Vignetting A Soft Lens or Edge Vignetting appears as a soft gradient decrease in brightness towards the edge of the frame. Sometimes it leads to full black pixels.
C-502_054 Hard Lens Vignetting/ Hard lens shading Hard vignetting is present when there is a almost immediate drop in brightness to a black or almost black level. This could be caused by an object in the frame or a poor lens coverage.
C-600_054 Lens Mechanical Issues An undetermined lens issue that causes issues on the images
C-601 Lens collimation issue Any issue related to the lens collimation which can be a blurry picture even when the focus point is correct/at infinite.
C-602 Strong/Distracting Lens Breathing When shifting from a focus point to another, a distracting zooming and blurry distorsion happens on the frame.
C-603 Anamorphic element misalignment When the anamorphic element of the lens is misaligned which causes the images to appear still under/over squeezed even after the de-squeezing process.
C-604 Focus/Iris/Zoom remote motor failure An unintended movement of Focus/Iris/Zoom due a mechanical failure in the remote control system. It sometimes results in a "jump" when the Focus/Iris/Zoom moves.
C-700 Miscellaneous anomalies A generic error to state that there is a problem with the camera
C-701 Camera upside down The camera has been flipped to capture a unique angle
C-702 Offspeed slow motion / fast motion
C-703 Camera lost power/Early cut A clip ends prematurely due to an issue or to a power loss from the camera
C-704 Wrong TC in camera The camera and sound timecode are not locked
C-705 No multicam sync When each camera has its own timecode in a multicam setup
C-706 Sensor dirt Dirt has been spotted on the sensor
CODE - A Audio/Sound - A Description
A-100 Background noise in the shoot A generic distracting noise in the background of the shot
A-101 excessive broadband noise on recording Broadband Noise also called wideband noise, is noise whose sound energy is distributed over a wide section of the audible range as opposed to narrowband noise.
A-102 airplane on recording There is a car or plane in the background
A-103 generator noise on recording On the recording, the sound of the generator is more predominant than what is intended to be recorded.
A-104 excessive birds in recording On the recording, the sound of the birds is more predominant than what is intended to be recorded.
A-105 excessive insects in recording On the recording, the sound of the insects is more predominant than what is intended to be recorded.
A-106 excessive ground movement/footsteps on unrelated surface When a lot of ground movements or footsteps are heard on surface which don't match the settings of the shot.
A-200_001 Audible distortion "Audio Clipping/ Distortion" is the effect in which the amplitude of an audio sample exceeds the maximum peak playback level. (Sometimes also associated with or classified as over-modulation).
A-201_006 audio hum Electrical noise or signal interference typically caused by an electrical ground-loop in the recording signal chain. (hum / interference)
A-202 excessive reflections or echoes on dialogue The dialogue has excessive reflections or echoes.
A-300 Audio recording issues Any issues pertaining to audio recording.
A-301 recording sounds muffled The recording sounds muffled.
A-302_037 not all channels/actors recorded Not all the channels or actors have been correctly recorded.
A-303_016 drop outs present in recording "Audio Dropout" is the irregular interruption or lack of audio signal in an audio mix, channel, or track.
A-304 sound rolls late The sound roll begins late into the camera take.
A-305 sound cuts early The sound roll ends before the end of a take.
A-306 sound NG The sound is not audible, or contains interference
A-307 actor off-mic The actor's voice is muffled or faint because it is not directed straight into the microphone or the microphone is not well positioned to record the actor's voice clearly.
A-308 missing mix track The audio clip is missing tracks from what it should be expected
A-309_017 MOS Audio The total lack of information in an audio channel.
MOS Shot.
A-310 Corrupted File The .wav file is corrupted and is not readable
A-400 RF issues during recording A generic RF related issue
A-401_003 RF noise (static) It is a crackling sound present on the audio track caused either by capture equipment or a corruption in the audio data itself.
A-402 RF noise (frequency switching) Radio Frequency noise which happens when switching frequencies.
A-500_089 Sound Metadata issues One or multiple metadata field(s) related to the sound essence or the sound container is incorrect
A-501_090 Incorrect Timecode "Incorrect Timecode" is the improper formatting or corruption of a timecode track or frame rate.
A-502 mislabeled sound file The file from sound is named/labeled incorrectly
A-503_011 Wrong Audio Channel Mapping "Audio Channel Mismap" is the incorrect implementation of the audio track or audio channel order, which dictates the desired speaker assignment or channel arrangement of an audio mix.
A-600 Miscellaneous anomalies A generic error to state that there is a problem with sound
CODE - V VFX/VP - V Description
V-100 VFX Shot Marking a VFX shot
V-101 Shot requires VFX clean up This take/shot requires a VFX clean up
V-102 Shot requires set extension Shot requires the set to be virtually extended
V-103 VFX balls and chart A take/shot with Silver Balls, Color charts or other VFX references
V-104 VFX reference This take/shot is VFX Reference shot to be used for VFX use only
V-105 VFX Plate A static roll capturing the background of a set
V-200 VP ICVFX LED ISSUE An undefined issue(s) on the LED
V-201 VP ICVFX LED - Visible Color Banding on LED An inaccurate representation of the color of the content that generates abrupt changes between shades of the same color, instead of gentle gradients.
V-202 VP ICVFX LED - Visible Noise / RGB Dithering A visible digital noise produced on the image projected on the LED wall
V-203 VP ICVFX LED - Visible seams / LED hotspots Visible separation between LED panels either noticed as dark or brighter edges
V-204 VP ICVFX LED - Visible LED panels faceting A curved LED wall shows faceting steps rather than a smooth curve
V-205 VP ICVFX LED - LED Wall Moiré A moiré pattern is an image artefact that is generated when two fine patterns interfere with each other. When shooting LED walls, the pattern created by the LED on the LED panels might be in conflict with the camera sensor photosite pattern and create visual artefacts such as color banding and multi-colored stair-stepping artefacts (a form of aliasing).
V-206 VP ICVFX LED - LED Wall Flicker/Genlock offset/Visible Scanlines Video artefacts represented as visible changes in brightness between cycles on the LED wall. These can be seen as dark static bands that move vertically or horizontally at various speeds, or as bright bands that move vertically.
V-207 VP ICVFX LED - LED White point / Color Shift (sections or whole) An unwanted variation of the color reproduction of the LED wall mostly caused by an off-axis camera position or overheating of the LED panels.
V-208 VP ICVFX LED - Visible reflection on the LED panels An unwanted reflection of the real scene onto section of the LED walls. Mostly caused by light sources on set which reflect on dark areas of the LED wall.
V-209 VP ICVFX LED - Lights contamination/Spill on LED panels from other light sources Light sources on set create a flare on the LED wall.
V-210 VP ICVFX LED - Visible panel joins/end (eg. visible wall/ground joins, wall/ceiling joins) Visible separation between LED wall sections
V-211 VP ICVFX LED - Visible LED mask A visible drop in brightness caused by the LED masks when viewed from off-axis
V-212 VP ICVFX LED - Visible white point/color rendition difference from the LED wall compared with the set lights A noticeable difference in color rendition, as seen by your camera, on your scene (especially on human skin) between the LED wall and any external light source used on set
V-213 VP ICVFX LED - Visible LED pattern / apparent lack of definition Visible LED pixels on the wall or reflected in a object on the set
V-214 VP ICVFX LED - Visible dead pixel / deal tile Visible dead-pixels or dead tiles on the LED wall
V-300 VP ICVFX CONTENT ISSUES A generic issue on the content reproduction on the LED wall
V-301 VP ICVFX CONTENT - 3D parallax issues / not realistic Calculated parallax of the content displayed on the LED wall is wrong/feels unrealistic
V-302 VP ICVFX CONTENT - Digital DOF issues / not realistic Depth of field calculation feels unrealistic
V-303 VP ICVFX CONTENT - Visible outer frustum Calculated frustum is smaller than the camera field of view
V-304 VP ICVFX CONTENT - Plates/HDRI Stitching errors/misalignment Section of a panorama are misaligned/ visible stitching of a panorama are visible
V-305 VP ICVFX CONTENT - Content Highlight/Chroma clipping Clipped highlights on the content displayed by the LED wall
V-306 VP ICVFX CONTENT - Content Crushed blacks Crushed blacks on the content displayed by the LED wall
V-307 VP ICVFX CONTENT - Visible Aliasing/Ray Tracing errors/Sparkle A visible aliasing artefact on the content displayed by the LED wall
V-308 VP ICVFX CONTENT - Content Lagging/Playback issues Content played on the LED wall is lagging or it doesn't have a smooth playback
V-309 VP ICVFX CONTENT - Content juddering Content speed has a fast refresh rate/playback speed and causes a judder effect in camera
V-310 VP ICVFX CONTENT - Stitching ghosting A visible (in camera) ghosting of two overlayed images caused by either two plates stitched together or two view ports incorrectly aligned
V-400 VP ICVFX CAMERA ISSUES A generic issue on the camera capturing side of the ICVFX setup
V-401 VP ICVFX CAMERA - LED/MediaPlayer/Camera Genlock issues Content playback and camera shutter are not synchronized perfectly causing a visible flicker or other artefacts of the content displayed on the wall.
V-402 VP ICVFX CAMERA - Camera tracking issues Digital camera tracking is not true to the physical camera movements/Digital camera movements are off sync with the physical camera movements/Tracking is noisy or inconsistent
V-403 VP ICVFX CAMERA - Visible LED refraction/diffraction aberrations on scene atmos or surfaces/EDGE diffraction Artefacts on the scene recorded by the camera caused by the LED wall lighting. Mostly they appear as color rainbows visible in the scene, through atmos or reflections or as double edges of objects in the scene.
V-404 VP ICVFX CAMERA - Low CRI / Color issues due to LED lighting An object or an actor illuminated by the LED wall appears wrong. Skintone shows some strong dominance (normally magenta/pink or green)
CODE - M Miscellaneous/FYI Description
M-100 Miscellaneous anomalies A generic error to state that there is a problem in the shot
M-101 False roll A take has been shot by mistake and doesn't contain an actual scene
M-102 Rolling reset The clip contains more than one take of the action.
M-103 Long preroll When the preroll takes a long time, before the word is "Action" is shout.
M-104 False start A take is started prematurely
M-105 Rolled over midnight Video and/or audio TC rolled over 23.59.59, causing it to reset to 00:00:00
M-200 Generic Slate Issue Wrong info on the slate
M-201 Tail slate The slate is at the end of the take, upside down.
M-202 Corrective tail ID A clip that corrects the previous slate.
M-203 No slate No slate has been given for the clip.
M-204 Slate Not Good Slate does not match the camera/script report or is mis-labelled
M-205 Series slate Slate shows a series of clips to be shot with no individual slate
M-206 Tail series slate Slate at the end of the take shows a series of clips that have been shot with no individual slate
M-207 Second clap A second clap is heard or seen
M-208 Common slate A single slate contains all camera and take information, and syncs sound for multiple cameras
M-209 Wrong Color/Camera Information on slate When the wrong color information is written on the slate and it doesn't match with the camera report.
M-210 DNR (Did not roll!) on Take XXX Camera did not roll! replace "x" with take number
M-211 Day for night Cinematic techniques used to simulate a night scene while filming in daylight
M-300 People in shot People in shot
M-301 Actor looks at camera Actors eyes acknowledge the camera or crew
M-302_096 Visible production crew Crew are visible in a take
M-303 Public in shot Potentially un-contracted public are passing through a take
M-400_096 Visible production equipment The on-set technical equipment associated with a film/ television shoot being visible in the shot
M-401 Boom in shot The boom dips into the frame lines on a take
M-402 Flag in shot A flag is visible within the frame lines of a take
M-403 Camera in shot A shooting camera is visible in the shot
M-500_062 Censorship shot "Censorship" refers to any edit to the video or audio used to obscure or eliminate content that may be considered offensive or illegal for broadcast.
M-501 Closed Set A closed set is when there's specific scenes with a limited number of crew members.
CODE - F FILM - F Definition
F-100 Miscellaneous film issues A generic error to state that there is a problem that belongs to the film
F-101 Light Scratch A light or small scratch is visible on the film.
Use R, G, B as qualifiers in case the issue is limited to one channel only. Use N or D if the issues derives from Negative in camera or the Development phase.
F-102 Deep Scratch A deep or large scratch is visible on the film.
Use R, G, B as qualifiers in case the issue is limited to one channel only. Use N or D if the issues derives from Negative in camera or the Development phase.
F-103 Stain A visible shift in colour is visible on the frame. Use R, G, B as qualifiers in case the issue is limited to one channel only. Use N or D if the issues derives from Negative in camera or the Development phase.
F-104 Waving The film seems to be waving and it's not stable.
F-105 Hair There is a visible hair or dust on the frame. Use R, G, B as qualifiers in case the issue is limited to one channel only. Use N or D if the issues derives from Negative in camera or the Development phase.
F-106 Flashing A ramping flash is visible within the take.
F-107 Burn There is a visible burned section of the film. Use R, G, B as qualifiers in case the issue is limited to one channel only. Use N or D if the issues derives from Negative in camera or the Development phase.
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