Join Ben Long for an in-depth discussion in this video The aperture, part of Photography Foundations: Exposure (part 1).
- So you've seen how the shutter is used by your camera…to control the amount of that strikes the image sensor.…Now, let's take a look at the aperture.…The aperture sits in your lens not your camera.…It's an iris composed of interlocking metal blades.…Here's a lens, watch what happens as the iris…is opened and closed.…The blades slide back and forth, and as the do so,…the hole in the middle gets bigger or smaller.…Now, obviously a bigger hole allows more light…to pass through, while a smaller hole allows less.…More light means a brighter image,…so as with shutter speed, you can use the aperture…to control how bright your image is.…
The size of the whole in the aperture is specified…using a measure called f-stop.…It's a number that refers to the ratio of the size…of the aperture, to the length of the lens.…Now, don't worry, that is not something…you need to think about when you're shooting.…All you need to know is that each specific aperture size…is denoted with an f-stop number.…So, you might have an aperture…
Note: This course is designed to work with any digital camera, but it is easier to follow along using a digital SLR or mirrorless camera.
- What is exposure?
- Modern camera anatomy
- Shutter, aperture, and ISO
- Light metering
- Changing shutter speed and aperture
- Exposure compensation
- Light meters
Skill Level Beginner
Learning Natural Light Portrait Photographywith Chris Orwig2h 30m Intermediate
A word about camera brands3m 19s
1. Exposure Fundamentals
2. Camera Anatomy
3. Basic Metering and Exposing
4. Dynamic Range
5. Exposure Compensation
6. Light Meters and Autofocus
Where to go next3m 34s
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