Imaging Sensor and ISO

Learn how the imaging sensor works and how to use the ISO as an exposure tool.

Imaging Sensor and ISO

Developed by Jason Tomaric, FilmSkills
ABOUT THIS LESSON

The imaging sensor is the heart of the camera system. It converts light into the electrical signal that becomes the image we see on screen. But understanding how it works and its limitations will help you improve your cinematography.

This lesson is jam-packed with tips on how to get the most out of your camera by understanding how photosites convert light into an electrical signal, bayer patterns, chip sensitivity, and working with dual ISOs.

This lesson includes:

  • 20:25 video
  • Illustrated supporting text
WHAT YOU WILL LEARN
  • What is an image sensor and it works
  • The difference between CCD and CMOS sensors
  • How photosites convert light into an electrical signal
  • How the bayer pattern works
  • How codecs and RAW files work
  • Camera bit depths and how compression works
  • How the bit depth affects the number of shades captured by the sensor
  • How film sensitivity affects the ISO
  • How to use ISO when exposing a shot
  • Working with dual ISOs in Rec709 and Log curves
  • How to work with gain
ABOUT THE LESSON AUTHOR
Jason Tomaric

Jason Tomaric

Director, Cinematographer Los Angeles, California
Jason J. Tomaric is an Emmy, Telly, and CINE Award-winning director and cinematographer of four internationally-distributed feature films, dozens of national television commercials, music videos, and the largest film training content library in the world, published author of 8 books - used in many top universities, and creator of AccuSkills.com, an industry-changing learning management platform. 
 
Jason has worked in Los Angeles and around the world in over 20 countries. His clients include Disney, NBC/Universal, National Geographic, McDonald’s, Toyota, Scion, Microsoft, and Paul Mitchell, with narrative work screened at Sundance, Slamdance, and South by Southwest film festivals as well as on Netflix and on all broadcast networks.
 
Jason has taught and/or guest lectured at some of the nation's most prestigious film schools including UCLA, Columbia College, John Carroll University, Kent State University, San Francisco State, University of Notre Dame, and numerous film festivals.
 
Jason has written eight industry-defining books, all sold in bookstores, and used in film schools around the world. The American Society of Cinematographers hails Jason's books - "There are no wasted words in Tomaric's tome, which concisely summarizes each facet of the director's craft.  It's difficult to think of a step in the process that Tomaric fails to address." 
 
Jason’s DVD training series on Hollywood film production have trained filmmakers in over 40 countries, with distributors in Europe, Hong Kong, New York and Australia.
 
In 2010, Jason launched FilmSkills, which combines the world’s largest film training video library with his proprietary learning management system.  Adopted by 47 universities within the first year, FilmSkills is now the leading industry-standard training solution for motion picture and television production.
 
In 2015, Jason launched AccuSkills.com, an industry-changing learning management platform that bridges the gap between academia and industry.