HDR Cheat Sheet 2026

The 30 highest-yield HDR facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is an example of a real-world application of HDR imaging? → For highly detailed landscape photography and video production.
2. What is the minimum peak luminance requirement for a display to be certified as HDR10 compliant? → 400 nits
3. Which codec is most widely used for HDR10 content distribution on Ultra HD Blu-ray discs? → HEVC/H.265
4. Which HDR format uses a backward-compatible approach that does not require metadata, making it simpler to distribute over broadcast television? → HLG (Hybrid Log-Gamma)
5. What is the primary obligation of a certified professional regarding patient/client confidentiality? → Protect all personal information and disclose only with proper authorization
6. Why is continuing education important for maintaining ethical practice? → It ensures practitioners stay current with evolving standards and best practices
7. When distributing HDR content to multiple platforms, what is the recommended approach for managing different HDR format requirements (HDR10, Dolby Vision, HLG)? → Create separate graded masters for each HDR format from the original camera negative
8. In the context of HDR monitors for professional mastering, what is the purpose of a built-in LUT (Look-Up Table)? → Storing calibration data to ensure accurate color and luminance reproduction
9. What is the importance of gamma correction in HDR imaging? → It adjusts the brightness of the image.
10. How do color spaces affect HDR images? → They ensure colors are displayed consistently.
11. What surround luminance does ITU-R BT.2100 recommend for a professional HDR grading environment? → 5 cd/m²
12. How does maintaining proper credentials demonstrate regulatory compliance? → It proves the practitioner has met all requirements for legal practice
13. How does HDR differ from SDR in terms of dynamic range? → HDR offers a higher range of brightness and colors.
14. How soon after a service or session should documentation be completed? → As soon as possible, ideally within 24 hours
15. What is the primary advantage of Mini-LED backlighting over conventional LED LCD for HDR displays? → Greater number of dimming zones for improved local contrast
16. What is the role of metadata in HDR production? → It stores details about the image's properties for consistent rendering.
17. What does the term 'color grading' mean in HDR production? → Adjusting the color tones to enhance or correct the image.
18. What does the VESA DisplayHDR 1000 certification specifically guarantee about sustained brightness? → 1000 nits peak on a 10% window for at least 1 second
19. What is the role of the Rec. 2020 color space in HDR? → It offers a broader color range for HDR content.
20. What is the most important principle in professional High Dynamic Range practice? → Maintaining competence through continuous learning and adherence to standards
21. Which color volume metric measures a display's ability to reproduce high brightness AND wide color gamut simultaneously? → Color Light Output
22. Which of the following best describes 'blooming' as a display artifact in HDR LCD screens? → Light spillover from bright areas into adjacent dark areas
23. What HDR metadata format is encapsulated within the SEI (Supplemental Enhancement Information) messages of an HEVC stream? → HDR10 static metadata
24. Which of the following software can be used to create HDR images? → Adobe Photoshop, Photomatix, and Lightroom.
25. Which display panel type is most susceptible to permanent image retention ('burn-in') when displaying static HDR content? → OLED
26. What is the appropriate response to witnessing unethical conduct by a colleague? → Report the conduct through established channels and document observations
27. When should a risk register be updated? → Continuously as new risks emerge and existing risks change
28. What is the purpose of tone mapping in HDR photography? → To compress the dynamic range for display.
29. Which of the following is a key benefit of HDR imaging? → It provides more accurate color and details.
30. Why is it important to use standardized terminology in documentation? → It ensures consistent understanding across all readers and reduces ambiguity