Join Ben Long for an in-depth discussion in this video How light meters work, part of Foundations of Photography: Exposure.
Here is a weird one.…Look at this black-and-white checkerboard.…We have got equal numbers of black-and-white squares, and all of the squares are the same size.…Obviously, white squares reflect light, and black square don't.…So you might think that this grid, which is half-composed of reflective white…squares, would reflect half of the light that's strikes it. But it doesn't.…It only reflects 18% of the light that strikes it.…Here is weirder one.…This is true for most scenes in the world.…It turns out that most scenes that you look at reflect 18% of the light that strikes them.…
Now this fact has obvious applications for cocktail party conversation,…crossword puzzles, and making very nerdy impressions on 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.…So what your light meter actually calculates is a shutter speed and aperture…
- What is exposure?
- Exploring camera modes
- Light metering
- Shooting sharp images
- Controlling shutter speed
- Understanding f-stops
- Controlling motion
- Working with a shallow depth of field
- Measuring aperture
- Shooting in low light conditions
- Performing manual light balance
- Working with the histogram
- Using fill flash
- Understanding reciprocity
Skill Level Appropriate for all
2. Exposure Fundamentals
3. Camera Anatomy
4. Shutter Speed Fundamentals
5. Aperture in Depth
6. Working with ISO
Shooting in low light3m 32s
7. White Balance
8. Metering Modes
How light meters work1m 47s
9. Exposure Compensation
10. Dynamic Range
11. Manual Mode
12. Advanced Program Mode
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