Join Ben Long for an in-depth discussion in this video The exposure triangle and reciprocity, part of Photography Foundations: Exposure (part 1).
- Earlier, I raised a question that you might…already have been wondering about.…Why are there two mechanisms…for controlling how much light strikes the sensor?…Why do you need both aperture and shutter speed…when either one lets you lighten or darken an image?…For that matter,…why do you then need a third parameter, ISO?…The reason is that shutter speed and aperture…do more than simply control the brightness in your image.…Think about a two-second exposure.…Two seconds is actually a pretty long time.…In that time just now, my heart beat a few times,…I did some breathing.…
I pondered some of the deeper questions…of meaning and existence.…And because of all that,…I probably did not hold the camera very steady.…And realistically, if I had tried to hold the camera steady,…I probably would have just made things worse.…This should be pretty intuitive, but if there's movement…within the frame while the shutter is open,…then that movement is going to appear blurry…in the final image.…Movement in the frame can be your subject moving,…
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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