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High Dynamic Range (HDR) Digital Photography

High Dynamic Range (HDR) Digital Photography. Jim Reynolds Feb 22, 2010. Example 1. Example # 2. Example #3. Example #4. Example #5. About HDR Effects. Renders the scene as the photographer saw it Captures large range of exposure values (Ev)

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High Dynamic Range (HDR) Digital Photography

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  1. High Dynamic Range (HDR) Digital Photography Jim Reynolds Feb 22, 2010

  2. Example 1

  3. Example # 2

  4. Example #3

  5. Example #4

  6. Example #5

  7. About HDR Effects • Renders the scene as the photographer saw it • Captures large range of exposure values (Ev) • Captures highlight detail in underexposed images • Captures shadow detail in overexposed images • Controls noise in shadows • Final images have wonderful color & infinite detail

  8. General HDR Process Steps • Take 3 – 7 exposures at different Ev • Load exposures into HDR Program (file conversion may be necessary) • Run HDR creation step (Generates 32 bit image) • Run Tone Mapping step (Reduces image to 16 bit) • Post process image for tones, saturation, etc

  9. Camera Set Up • Camera on sturdy tripod with cable release • Set camera program to Aperture Priority • Turn off automatic settings such has White Balance, Autofocus, flash and ISO • Set ISO to low value to reduce noise • Use Manual focus • Continuous shooting mode • Raw 12 bit files

  10. HDR Shooting • Compose and shoot one image as normal • Then shoot 1 image at – 2 Ev • Then shoot 1 image at + 2 Ev • Or if available, use camera’s Automatic Exposure Bracketing (AEB) to shoot 3 rapid exposures (Canon) • On certain Nikon models, shoot 5 – 7 AEB exposures at 1 EV increments each

  11. HDR Programs Compared

  12. HDR Programs Compared 2

  13. Capitola Pier – Normal Exposure

  14. Underexposed / Overexposed

  15. Photomatix / FDRTools

  16. Which One is HDR?

  17. Credits • Complete Guide to HIGH DYNAMIC RANGE Digital Photography by Ferrell McCollough

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