Lesson 2 • RAW vs. JPG

1. R A W V S . J P E G
U N I T 3 • D I G I TA L D A R K R O O M

2. L E A R N I N G G O A L S
• Do I have knowledge and
understanding of RAW and JPEG file
formats for photography?
• Can I use digital tools to process a
RAW file?

3. K E Y Q U E S T I O N S
• How is each file format processed?
• Which format is lossless and which is compressed?
• Which file format has a large dynamic range (highlights—>shadows)?
• Which file format is larger?
• What can be corrected in RAW that cannot be corrected in JPEG?

4. Sensor Processor Memory Card
R A W

5. Sensor Processor
White balance
Contrast
Saturation
Colour depth
Sharpness
JPEG Compression
Memory Card
J P E G

6. R A W
• A digital negative
• Uncompressed (lossless)
• All the lossless image date that your
camera’s sensor records
• Much larger file size (~18 MB per)
• Higher dynamic range
• Correct white balance in post-processing
• Needs to be processed by computer
J P E G
• Compressed (lossy)
• Can be read by any device
• Small file size (~5mb per)
• Lower in dynamic range
• Processed within the camera

7. Think of it like a WAV vs. MP3

9. RAW JPEG

10. D O W N L O A D R A W F I L E & O P E N P H O T O S H O P
Let’s practice processing camera RAW files.

11. K E Y Q U E S T I O N S
• How is each file format processed?
• Which format is lossless and which is compressed?
• Which file format has a large dynamic range (highlights—>shadows)?
• Which file format is larger?
• What can be corrected in RAW that cannot be corrected in JPEG?