Settings for events: the exposure triangle in real life
A camera picture is like filling a bucket with light. You can open the tap wider (aperture), leave it open longer (shutter speed), or make the bucket more sensitive (ISO). Events are often dark, so you juggle all three.
- Aperture (f-number): a lower number (f/1.8, f/2.8) lets in more light and blurs the background more. A higher number (f/8) keeps more in focus.
- Shutter speed: a faster speed freezes motion. Rough starting points: about 1/250 s or faster for people moving and dancing, faster still for sports. A common handheld guide is a shutter speed of at least 1 / (focal length), for example 1/50 s at 50 mm (stabilisation can help you go slower).
- ISO: raises brightness but adds noise (grain). Modern cameras handle high ISO well; a sharp, slightly grainy photo is better than a blurry clean one.
- White balance: set it to match the light (daylight, tungsten, or a custom setting) so skin looks natural. Shoot RAW if you can, so you can fix it later.
- Autofocus: use continuous autofocus (often called AF-C or Servo) and face or eye detection for moving people.
- Video shutter rule: a common guide (the "180-degree rule") sets shutter speed to about double the frame rate, such as 1/50 s at 25 fps or 1/60 s at 30 fps, for natural-looking motion.
- Go to a dim room and ask someone to walk across it.
- Set your camera to manual (M) and RAW if you can, with continuous autofocus (AF-C or Servo) and face or eye detection.
- Photograph the walk at 1/30 s, then 1/125 s, then 1/250 s.
- After each change, adjust the aperture (lower f-number) and ISO to keep the brightness about the same.
- Zoom in on each photo and compare sharpness and noise.
- Write the settings you would start with at your next event.
- Check: you can say which shutter speed froze the motion and what ISO that cost you.
Videos by other creators on YouTube, for reference. They are not made by or affiliated with The Future Market.
Read the video script
[Host in a dim hall holding a camera] "Events are dark and people move. That's the challenge."
[Text on screen: Aperture. Shutter. ISO.] "You have three tools: aperture, shutter speed and ISO."
[Screen: blurry dancer at 1/30 next to sharp dancer at 1/250] "Moving people? Start around 1/250 of a second."
[Host] "Then open the aperture and raise ISO until it's bright enough. A little grain beats a blurry photo."
[Text on screen: Video: shutter about 2x frame rate] "Filming video? Set your shutter to about double your frame rate."
In a dim room, photograph someone walking at 1/30 s, 1/125 s and 1/250 s, adjusting aperture and ISO to keep the brightness similar. Compare sharpness and noise, and write down the settings you'd start with at your next event.
ClaudeStuck? Copy a ready-made prompt for Claude
Copy this, open Claude, paste it, and Claude will walk you through the lesson step by step.
For a grown-up: Claude is for adults (18+). Copy this, paste it into Claude, and use the answer to explain the lesson to your child.
I'm learning "Event Photography & Video" on The Future Market. Lesson 1: "Settings for events: the exposure triangle in real life". What the lesson teaches: - Aperture (f-number): a lower number (f/1.8, f/2.8) lets in more light and blurs the background more. A higher number (f/8) keeps more in focus. - Shutter speed: a faster speed freezes motion. Rough starting points: about 1/250 s or faster for people moving and dancing, faster still for sports. A common handheld guide is a shutter speed of at least 1 / (focal length), for example 1/50 s at 50 mm (stabilisation can help you go slower). - ISO: raises brightness but adds noise (grain). Modern cameras handle high ISO well; a sharp, slightly grainy photo is better than a blurry clean one. - White balance: set it to match the light (daylight, tungsten, or a custom setting) so skin looks natural. Shoot RAW if you can, so you can fix it later. - Autofocus: use continuous autofocus (often called AF-C or Servo) and face or eye detection for moving people. - Video shutter rule: a common guide (the "180-degree rule") sets shutter speed to about double the frame rate, such as 1/50 s at 25 fps or 1/60 s at 30 fps, for natural-looking motion. The exercise I'm working on: In a dim room, photograph someone walking at 1/30 s, 1/125 s and 1/250 s, adjusting aperture and ISO to keep the brightness similar. Compare sharpness and noise, and write down the settings you'd start with at your next event. --- I'm stuck. Please: 1. Explain the main idea in plain, simple words with one everyday example. 2. Walk me through the exercise one small step at a time. Ask me what I've done so far before giving the next step. 3. Don't just give me the final answer. Help me do it myself, and check my work when I share it.
I'm a parent helping my child (about 8 years old) with a lesson called "Settings for events: the exposure triangle in real life" from the course "Event Photography & Video". Here's what the lesson says: A camera picture is like filling a bucket with light. You can open the tap wider (aperture), leave it open longer (shutter speed), or make the bucket more sensitive (ISO). Events are often dark, so you juggle all three. The activity: In a dim room, photograph someone walking at 1/30 s, 1/125 s and 1/250 s, adjusting aperture and ISO to keep the brightness similar. Compare sharpness and noise, and write down the settings you'd start with at your next event. --- Please explain this so an 8-year-old understands: short sentences, a fun everyday example, and no hard words. Then give me 3 simple questions I can ask my child to check they understood, and a way to do the activity together, one tiny step at a time.
Planning: brief, shot list and timeline
This lesson is part of full access: every course and every level for one payment.
On the day: moments, people and low light
This lesson is part of full access: every course and every level for one payment.
Video and audio at live events
This lesson is part of full access: every course and every level for one payment.
Consent, copyright and the business side (with Canadian examples)
This lesson is part of full access: every course and every level for one payment.
Backup, culling, editing and delivery
This lesson is part of full access: every course and every level for one payment.
Final project
This lesson is part of full access: every course and every level for one payment.
Quiz
What three settings make up the exposure triangle?
Aperture, shutter speed and ISO.
What is a good starting shutter speed for moving people?
About 1/250 s or faster.
Under the "180-degree rule", what shutter speed goes with 30 fps video?
About 1/60 s.
What matters more at a live event video: perfect focus or clean audio?
Clean audio.
In most countries, who is usually the first owner of copyright in a photo?
The author (the photographer), unless an exception like employment applies or there's an agreement.
What can an individual do with a personal portrait they commissioned and paid for?
Use it for private or non-commercial purposes, unless agreed otherwise.
What is the 3-2-1 backup rule?
Three copies, on two kinds of storage, with one kept somewhere else.
At what revenue level do you need to register for sales tax?
It depends on your country; check your tax agency's limit.
Final exam
This lesson is part of full access: every course and every level for one payment.
Certificate
This lesson is part of full access: every course and every level for one payment.