DSLR Photography - The Sensor - Week 5

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In Week 5 we look at the camera sensor.

In Week 5 we look at the camera sensor.

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  • 1. The Sensor © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 2. The Sensor © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 3. The Sensor © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 4. The Sensor Onboard CPU 01 10 10 Amplifier A to D Converter 01 © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 5. The Sensor • CCD vs CMOS • Traditional Pros & Cons have been overcome • Nikon - traditionally CCD (cheaper but slower) • Canon - traditionally CMOS (better but noisy) • Check your camera’s specifications © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 6. The Sensor The Bayer Pattern Sensor © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 7. The Sensor © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 8. The Sensor © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 9. The Sensor Lens © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 10. The Sensor © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 11. The Sensor Light The Camera Sensor © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 12. The Sensor PIXELS = PIcture ELementS © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 13. The Sensor PIXELS = PIcture ELementS © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 14. The Sensor PIXELS = PIcture ELementS DPI ? or PPI ? The “Jaggies” “Pixelation” © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 15. The Sensor Interpolation © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 16. The Sensor PIXELS = PIcture ELementS 6 Megapixels = 6 Million Pixels Nikon D-50 width x height= Total Pixels 3008 x 2000= 6,016,000 © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 17. The Sensor The Megapixel Myth © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 18. The Sensor The Sensor’s Physical Size © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 19. The Sensor Remember 35mm Film? 35mm © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 20. The Sensor Good Bye 35mm Film! © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 21. The Sensor Good Bye 35mm Film! 35mm Full-Frame Sensor © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 22. The Sensor The Sensor’s Physical Size Point-n-Shoot Typical DSLR Full Frame (35mm) © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 23. The Sensor The Sensor’s Physical Size © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 24. The Sensor The Sensor’s Physical Size © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 25. The Sensor The Sensor’s Physical Size But First ... It’s all based on good–ole 35mm! © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 26. The Sensor Field-of-view – The Impact of Focal Length Lens Image Circle 35mm Film Frame Digital Sensor Frame © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 27. The Sensor Field-of-view – The Impact of Focal Length An “Apparent” Magnification Factor! © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 28. The Sensor Advantages of Smaller Sensors Smaller cameras Less expensive Good for telephoto shooter © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 29. The Sensor Disadvantages of Smaller Sensors Noise Lower ISO No long exposures Overall Image Quality © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 30. The Sensor Advantages of Full-Frame Sensors Very low noise Very high ISO Overall Image Quality Compatibility with legacy lenses © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 31. The Sensor Advantages of Full-Frame Sensors No “Crop Factor” calculations © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 32. The Sensor Disadvantages of Full-Frame Sensors Cost Bulk Legacy lenses may not be optimal © Sandro V Cuccia - www.Imagemedic.com Monday, October 11, 2010
  • 33. Sandro Cuccia sandro@ImageMedic.com w w w. I m a g e M e d i c . c o m Monday, October 11, 2010