photography: 7 - raw format
TRANSCRIPT
RAW is not an acronym - it's just a generic term for a file that contains the raw data from a camera's sensor
RAW is not an acronym - it's just a generic term for a file that contains the raw data from a camera's sensor
0100011110001010101011010100100011110001010100011010101101010010001111000101010101101010010001111000101010101101010010001111000101010101101010010001111000101010101101010010001111000101010101101010010001111000101010101101010101000111100010101010110101001000111100010101010110101001000111100010101010110101001000111100010101010110101001000111
Every camera shoots RAWs but most convert into a standard JPEG file for ease of use
When you shoot in JPEG adjustments are applied to the image via the camera's image processor at the time of capture
01000111100010101010110101001000111100010101000110101011010100100011110001010101011010100100011110001010101011010100100011110011010100100011101010110101010001101011101
Converted by camera
RAW FILE JPEG FILE
Then the RAW data is deleted – LOST!
01000111100010101010110101001000111100010101000110101011010100100011110001010101011010100100011110001010101011010100100011110011010100100011101010110101010001101011101X JPEG FILE
Leaving you with a nicely exposed JPEG photo – but you’ve lost all the extra RAW data!
JPEG FILE
You can adjust colour temperature, contrast, shadow depth, highlight brightness, saturation, sharpening, exposure...…without ‘degrading’ the image
RAW file is a bit like a digital version of an old negative
These adjustments take place in special RAW conversion software
In traditional photography you always get the best quality photo by printing from a neg…
35mm NEGATIVE
PHOTO / PRINT
Likewise in digital photography – using RAW means you expose the JPEG not your camera!
35mm NEGATIVE
PHOTO / PRINT
RAW FILE
JPEG FILE
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
RAW FILEJPEG FILE
RAW FILEJPEG FILE
RAW FILEJPEG FILE
RAW FILEJPEG FILEORGINALS
RAW FILEJPEG FILEORGINALS
Imported through Adobe Camera RAW (ACR) plug-in
Software that came with your camera
UFRaw for GIMP or RAW Therapee
If you just want to quickly view RAW images before properly converting them use an image viewer such as XnView:
Or the softwarethat came withyour camera
