Photograpy for Beginners: Understanding ISO through Practice

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Learning to understand the exposure triangle basics will help you start out on the right foot in photography.  Once you understand the basic concepts, the only way to get better is to practice.  In my last video ISO Basics, I suggested that you can use the ‘P’ mode on your DSLR Camera to practice using just the ISO.  In this video, I’ll show you the images I made using that method and show you how noise and grain creep into an image as you get into higher ISO settings.  

Here are some things to remember about ISO

  • ISO is the sensitivity of the image sensor to light
  • Lower ISO’s (100, 200, 400) are going to give you a cleaner image.  Less Noise/Grain
  • Use low ISO’s in bright environments 
  • Higher ISO’s 1600+ are going to have more noise/grain.  Not always a bad thing!
  • Higher ISO’s allow you to photograph in darker situations
  • Higher ISO’s will allow you to use a faster shutter speed (we will get into shutter speed in a future video)

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