Join Ben Long for an in-depth discussion in this video How light meters work, part of Photography Foundations: Exposure (part 1).
- Here's a weird one.…Look at this black and white checkerboard.…We've got equal numbers of black and white squares,…and all of the squares are the same size.…Obviously, white squares reflect light…and black squares don't.…So, you might think that this grid,…which is half composed of reflective white squares…would reflect half of the light that strikes it,…but it doesn't, it only reflects…18% of the light that strikes it.…Here's a weirder one.…This is true for most scenes in the world,…it turns out that most scenes that you look at…reflect around 18% of the light that strikes them.…
Now this fact has obvious applications…for cocktail party conversation, and crossword puzzles,…and making very nerdy impressions of first dates.…But there is a photographic application as well,…because most scenes in the world reflect…18% of the light that strikes them,…if your light meter assumes that what it's pointed at…is reflecting 18%, then that's a pretty safe assumption.…Here's why that's useful.…You can think of a percentage of light as a shade of gray,…
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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