Photography: 7 - Raw Format

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Raw photo format explained

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Photography: 7 - Raw Format

  1. 1.  RAW is not an acronym - it's just a generic term for a file that contains the raw data from a camera's sensor
  2. 2.  RAW is not an acronym - it's just a generic term for a file that contains the raw data from a camera's sensor 010001111000101010101101010010001 111000101010001101010110101001000 111100010101010110101001000111100 010101010110101001000111100010101 010110101001000111100010101010110 101001000111100010101010110101001 000111100010101010110101010100011 110001010101011010100100011110001 010101011010100100011110001010101 011010100100011110001010101011010 1001000111
  3. 3.  Every camera shoots RAWs but most convert into a standard JPEG file for ease of use
  4. 4.  When you shoot in JPEG adjustments are applied to the image via the camera's image processor at the time of capture 01000111100010101010110 10100100011110001010100 01101010110101001000111 10001010101011010100100 01111000101010101101010 01000111100110101001000 11101010110101010001101 011101 Converted by camera RAW FILE JPEG FILE
  5. 5.  Then the RAW data is deleted – LOST! 01000111100010101010110 10100100011110001010100 01101010110101001000111 10001010101011010100100 01111000101010101101010 01000111100110101001000 11101010110101010001101 011101 X JPEG FILE
  6. 6.  Leaving you with a nicely exposed JPEG photo – but you’ve lost all the extra RAW data! JPEG FILE
  7. 7.  You can adjust colour temperature, contrast, shadow depth, highlight brightness, saturation, sharpening, exposure... …without ‘degrading’ the image
  8. 8.  RAW file is a bit like a digital version of an old negative
  9. 9.  These adjustments take place in special RAW conversion software
  10. 10.  In traditional photography you always get the best quality photo by printing from a neg… 35mm NEGATIVE PHOTO / PRINT
  11. 11.  Likewise in digital photography – using RAW means you expose the JPEG not your camera! 35mm NEGATIVE PHOTO / PRINT RAW FILE JPEG FILE
  12. 12.  Adjustments made off a negative/RAW contain far more precision than a print/JPEG You adjust the print You adjust the print 35mm NEGATIVE PHOTO / PRINT RAW FILE JPEG FILE
  13. 13. RAW FILEJPEG FILE
  14. 14. RAW FILEJPEG FILE
  15. 15. RAW FILEJPEG FILE
  16. 16. RAW FILEJPEG FILEORGINALS
  17. 17. RAW FILEJPEG FILEORGINALS
  18. 18.  Imported through Adobe Camera RAW (ACR) plug-in
  19. 19.  Software that came with your camera  UFRaw for GIMP or RAW Therapee
  20. 20.  If you just want to quickly view RAW images before properly converting them use an image viewer such as XnView:  Or the software that came with your camera

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