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SJ/T 11985-2025 Non-Broadcast UHD Camera Specification

Full Standard Name

Technical Specification of UHD Cameras for Non-Broadcast Grade

SJ/T 11985-2025 Technical Specification of UHD Cameras for Non-Broadcast Grade

Standard Details

Sector / Industry Electronics
Standard Type SJ/T (Recommended)
Standard Status Valid
Older Standard None
CCS Classification M74
ICS Classification 33.160.99
Issue Date 2025-05-09
Implementation Date 2025-08-01
File Type PDF
PDF Page Count About 17 pages
Competent Department National Technical Committee on Audio, Video and Multimedia Systems and Equipment of Standardization Administration of China
Quoted Standard GB/T 5465.2

SJ/T 11985-2025 (English Version)

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SJ/T 11985-2025 (Chinese Version)

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Standard Introduction

This standard applies to non-broadcast UHD cameras used in professional, home, conference, education and sports scenarios. 

It classifies cameras into Class A (4K, 3840x2160) and Class B (8K, 7680x4320), and by form factor into handheld and fixed-mount types. 

The document also differentiates by transmission mode (network vs non-network) and use case. Performance requirements are specified with differentiated thresholds for centre vs corner resolution, and detailed test procedures cover dark-room conditions, test chart illumination, camera settings and instrument positioning for both reflective and transmissive test setups.

Standard Catalog

The standard consists of the following main sections:

  • 1 Scope 1

  • 2 Normative References 1

  • 3 Terms, Definitions and Abbreviations 1

  • 3.1 Terms and Definitions 1

  • 3.2 Abbreviations 2

  • 4 Classification 2

  • 5 Requirements 2

  • 5.1 Normal Operating Conditions 2

  • 5.2 Basic Requirements 2

  • 5.2.1 Appearance and Structure 2

  • 5.2.2 Interfaces 3

  • 5.2.3 Power Supply 3

  • 5.2.4 Storage Modes 3

  • 5.2.5 Graphical Symbols for Equipment 3

  • 5.3 Technical Requirements 3

  • 5.3.1 Video Recording Format 3

  • 5.3.2 Video Output Format 3

  • 5.3.3 Functional Requirements 3

  • 5.3.4 Performance Requirements 4

  • 6 Test Conditions 4

  • 6.1 Test Environment 4

  • 6.2 Power Supply 5

  • 6.3 Camera Conditions 5

  • 6.4 Test Instruments 5

  • 6.5 Camera Settings 5

  • 6.6 Instrument Position 5

  • 6.7 Test Charts 6

  • 6.7.1 Resolution Test Chart 6

  • 6.7.2 Grayscale Test Chart 6

  • 6.7.3 Colour Reproduction Test Chart 7

  • 6.7.4 Dynamic Range Test Chart 7

  • 6.7.5 Uniformity Test Chart 7

  • 7 Test Methods 8

  • 7.1 Appearance and Structure 9

  • 7.2 Interfaces 9

  • 7.2.1 Main Output 9

  • 7.2.2 Storage 9

  • 7.3 Power Supply 9

  • 7.4 Storage Modes 9

  • 7.5 Graphical Symbols for Equipment 9

  • 7.6 Video Recording Format 9

  • 7.7 Video Output Format 9

  • 7.8 Functions 9

  • 7.8.1 Optical Zoom 9

  • 7.8.2 Focus 10

  • 7.8.3 White Balance 10

  • 7.8.4 Shutter Adjustment 10

  • 7.8.5 Iris Adjustment 10

  • 7.8.6 Display or Viewfinder 10

  • 7.8.7 Playback 10

  • 7.8.8 Chinese Menu 10

  • 7.8.9 Microphone 10

  • 7.8.10 Night Vision 10

  • 7.8.11 Time-Lapse Shooting 10

  • 7.8.12 Image Stabilisation 10

  • 7.8.13 Other Functions 10

  • 7.9 Performance 10

  • 7.9.1 Resolution 10

  • 7.9.2 Minimum Available Illuminance 11

  • 7.9.3 Maximum Luminance Discrimination Level 11

  • 7.9.4 Colour Reproduction Error 11

  • 7.9.5 Geometric Distortion 11

  • 7.9.6 Signal-to-Noise Ratio 12

  • 7.9.7 Temperature Drift 12

  • 7.9.8 Contrast 12

  • 7.9.9 Luminance Uniformity 12

  • 7.9.10 Dynamic Range 13

  • 7.9.11 White Balance 13

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