Key Terms: Aperture, Shutter, and ISO (Camera Lesson 01)

Summary: Ryan covers the first three crucial camera terms: aperture, shutter, and ISO.

Length: 8:32 minutes

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Depth of Field, Part 1: How Aperture and ISO Affect Focus
Your Guide To High Speed, Part 6: Five Tips For A Successful Shoot
Your Guide To High Speed, Part 5: Lighting Six High Speed Sets
Your Guide To High Speed, Part 4: Common Lighting Problems
Your Guide To High Speed, Part 3: Camera Operation & Workflow
Your Guide To High Speed, Part 2: Frame Rate
Your Guide To High Speed, Part 1: Introduction
12 Crucial Questions Before Lighting Your Set (Cinematic Lighting Lesson 15)
Negative Fill: The Best Kept Secret (Cinematic Lighting Lesson 08)
12 replies
  1. Will
    Will says:

    Hey Ryan & Tim, really enjoying the first lessons on the course. As per your recommendations I’ve invested in a Sekonic l-478dr and am just trying to find my way around it. I’m shooting on a GH3 with a older Nikon photo lens so I’m manually changing the f-stops on the lens.

    On the camera lens I’m using the F-stops go f2, f2.2, f2.5, f2.8 etc

    On the light meter (using the T function) the F reading is a large 2.0, then a small number next to the 2.0 such as 2.0 (small 6) and then the next large number is 2.8

    I assume these smaller numbers are increments of light change between the stops?

    My question is:

    Is there a way to change the light meters setting to match the 1/3 stop markings on the camera? so they also read f2, f2.2, f2.5, f2.8 etc

    Thanks for your time.


    • Ryan E. Walters
      Ryan E. Walters says:


      Thanks- glad you like the lessons, and congrats on getting the meter. 🙂

      You are correct- the small number is an increment- it is actually 1/10 of one stop. So a read of 2.0 4 is 2 and 4 tenths of a stop.

      To get your meter to match the reading on your DSLR, Press the MENU button, select #3 (Custom Setting), Select #1 (Increments of T+F) and then change it from 1 stop to 1/3 stop. Now it will read like your DSLR read out.

      Happy Shooting. 🙂

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