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Light Meter Basics

Lesson 33 from: Fundamentals of Photography 2016

John Greengo

Light Meter Basics

Lesson 33 from: Fundamentals of Photography 2016

John Greengo

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Lesson Info

33. Light Meter Basics

Next Lesson: Histogram

Lessons

Class Trailer
1

Class Introduction

17:26
2

Welcome to Photography

13:08
3

Camera Types Overview

02:00
4

Viewing Systems

28:43
5

Viewing Systems Q&A

08:45
6

Lens Systems

32:06
7

Shutter Systems

13:17
8

Shutter Speeds

10:47
9

Choosing a Shutter Speed

31:30
10

Shutter Speeds for Handholding

08:36
11

Shutter Speed Pop Quiz

09:06
12

Camera Settings

25:35
13

General Camera Q&A

14:38
14

Sensor Sizes: The Basics

15:33
15

Sensor Sizes: Compared

19:10
16

Pixels

20:13
17

ISO

21:13
18

Sensor Q&A

13:34
19

Focal Length: Overview

11:09
20

Focal Length: Angle of View

15:09
21

Wide Angle Lenses

08:48
22

Telephoto Lenses

25:23
23

Angle of View Q&A

09:29
24

Fish Eye Lenses

10:39
25

Tilt & Shift Lenses

23:42
26

Subject Zone

17:19
27

Lens Speed

09:56
28

Aperture Basics

08:46
29

Depth of Field

21:49
30

Aperture Pop Quiz

13:23
31

Lens Quality

18:30
32

Photo Equipment Life Cycle

03:57
33

Light Meter Basics

09:25
34

Histogram

15:25
35

Histogram Pop Quiz and Q&A

10:58
36

Dynamic Range

06:03
37

Exposure Modes

15:58
38

Manual Exposure

09:38
39

Sunny 16 Rule

05:54
40

Exposure Bracketing

10:18
41

Exposure Values

27:21
42

Exposure Pop Quiz

26:43
43

Focus Overview

16:15
44

Focusing Systems

05:15
45

Autofocus Controls

11:56
46

Focus Points

07:35
47

Autofocusing on Subjects

20:19
48

Manual Focus

07:52
49

Digital Focusing Assistance

03:40
50

Focus Options: DSLR and Mirrorless

04:58
51

Shutter Speeds for Sharpness and DoF

05:20
52

Depth of Field Pop Quiz

12:14
53

Depth of Field Camera Features

04:54
54

Lens Sharpness

09:58
55

Camera Movement

05:20
56

Handheld and Tripod Focusing

04:32
57

Advanced Techniques

07:12
58

Hyperfocal Distance

06:50
59

Hyperfocal Quiz and Focusing Formula

04:36
60

Micro adjust and AF Fine Tune

05:34
61

Focus Stacking and Post Sharpening

06:00
62

Focus Problem Pop Quiz

18:07
63

The Gadget Bag: Camera Accessories

25:30
64

The Gadget Bag: Lens Accessories

12:46
65

The Gadget Bag: Neutral Density Filter

20:43
66

The Gadget Bag: Lens Hood and Teleconverters

08:55
67

The Gadget Bag: Lens Adapters

05:43
68

The Gadget Bag: Lens Cleaning Supplies

04:34
69

The Gadget Bag: Macro Lenses and Accessories

15:57
70

The Gadget Bag: Flash and Lighting

05:08
71

The Gadget Bag: Tripods and Accessories

18:50
72

The Gadget Bag: Custom Cases

11:20
73

10 Thoughts on Being a Photographer

07:37
74

Direct Sunlight

25:04
75

Indirect Sunlight

18:49
76

Sunrise and Sunset

18:39
77

Cloud Light

14:48
78

Golden Hour

09:50
79

Light Pop Quiz

07:53
80

Light Management

14:00
81

Artificial Light

13:56
82

Speedlights

16:02
83

Off-Camera Flash

27:38
84

Advanced Flash Techniques

09:49
85

Editing Overview

08:24
86

Editing Set-up

08:06
87

Importing Images

16:45
88

Best Use of Files and Folders

20:54
89

Culling

20:56
90

Develop: Fixing in Lightroom

18:13
91

Develop: Treating Your Images

10:53
92

Develop: Optimizing in Lightroom

14:51
93

Art of Editing Q&A

06:01
94

Composition Overview

06:53
95

Photographic Intrusions

10:10
96

Mystery and Working the Scene

16:18
97

Point of View

09:11
98

Better Backgrounds

16:02
99

Unique Perspective

11:02
100

Angle of View

15:06
101

Subject Placement

41:14
102

Subject Placement Q&A

05:18
103

Panorama

07:39
104

Multishot Techniques

13:57
105

Timelapse

16:13
106

Human Vision vs The Camera

20:07
107

Visual Perception

08:35
108

Visual Balance Test

22:56
109

Visual Drama

12:25
110

Elements of Design

28:57
111

The Photographic Process

12:28
112

Working the Shot

27:38
113

The Moment

04:42
114

One Hour Photo - Colby Brown

1:04:32
115

One Hour Photo - John Keatley

1:03:05
116

One Hour Photo - Art Wolfe

59:01
117

One Hour Photo - Rocco Ancora

1:01:20
118

One Hour Photo - Mike Hagen

1:01:20
119

One Hour Photo - Lisa Carney

1:00:52
120

One Hour Photo - Ian Shive

1:08:00
121

One Hour Photo - Sandra Coan

1:10:29
122

One Hour Photo - Daniel Gregory

1:06:07
123

One Hour Photo - Scott Robert Lim

1:05:41

Lesson Info

Light Meter Basics

Let's get into the serious stuff, exposure. We're gonna be talking about how we're gonna be setting our shutter speeds and our apertures and the whole method to the madness. And there's a lot of things that we're gonna need to cover, so we will do it starting with some light meter basics. What we are concerned about, as photographers, is the amount of light that is striking the subject that we are gonna photograph. It's not the biggest concern where that light is and how much light is coming out of that light. It's how much is striking our particular subject. If you saw me yesterday, I took out the handheld light meter and I went over to the subject. With modern light meters and light meters from a long time ago, you could go up to your subject and get the light reading and take a look and it would give you the magic, perfect numbers for shutter speed, aperture and ISO. So if you would like perfect exposures on every single photograph by yourself a light meter, go up to the subject, ta...

ke a meter reading and set your camera to those settings and you will get a perfect exposure on every picture. The problem is it's rather inconvenient to walk up to every single subject you're gonna photograph and get that meter reading. So our cameras use a different type of metering system in them. They use what's called a reflected light metering. So it's not measuring the light that is striking the subject. It is the light that is striking the subject and then bouncing towards the camera. Here's where we have a little bit of a problem, because we have the light, the subject and both of these might affect how bright or dark that particular light is. In our cameras; on our SLRs, and it works slightly different with mirrorless cameras; but with our SLRs light bounces down through a sub-mirror system down to an assembly down at the bottom of the camera, so that there is a meter down there that is constantly reading how much light is coming in the camera and that is how it can read the light while you are actually looking through it. Mirrorless cameras will be using the information hitting the sensor, but it's the same concept. So it's the amount of light being reflected back to the camera. The camera's light meter is based on the assumption that your subject is middle tone gray, an average of light and dark, this middle tone gray. And if it is middle tone gray you are gonna get a nice, even exposure. No matter the light, as long as it's a gray subject, you're gonna get a correct exposure. Where things get a little interesting and a little problematic is when your subject is darker than average, because what happens is less light is sent to the camera. The camera senses that it's much darker and your camera doesn't wanna take dark photos. It likes to take photos that are in between, average of light and dark. What it's gonna do is it's gonna recommend shutter speeds and apertures which will give you an average result. The problem is that this is a very dark subject. And this is something that you, as the photographer taking the photo, need to be aware of. Is the subject I'm taking a picture of lighter than average or darker than average? The same thing happens on the opposite extreme. If your subject is extremely white, it's gonna bounce an excessive amount of light back to your camera. Your camera is gonna see this as extraordinarily light and it's gonna recommend shutter speeds and apertures that are more in the average area, so that your subject comes out a little bit darker. It only works well with middle tone subjects and will be slightly misled by subjects that are darker or lighter than average and this is where you have to use your own eyes, own brain and your own experience to judge when you are in one situation or the other. A common example would be if you're out on a snowy day, up in the mountains, for instance, and there's snow everywhere. There's a lot of light being reflected back to the camera and that's going to fool it. And that's something that we're going to be working with throughout this entire section. Where this is gonna be shown to you, in your camera, is most cameras will have what's called a graphic light meter. It shows you, down there, whether you're overexposed or underexposed. This meter right here in the blue box is showing us that we are two stops underexposed. That means it's gonna be dark by two stops. If the indicator is under the one, that means that we are one stop overexposed. The plus is over; the minus is under. Normally we're gonna try to get most of our photos with the indicator right in the middle. Sometimes there's a zero there, right below that triangle. That means that we are at even exposure. It's not overly bright; it's not overly dark. Some cameras use a numeric scale and they'll just simply say -2, for -2 exposures. They'll say +1 for one stop overexposed. And normally, those situations, you would have that set at 0. That's just some of the basics about how you're camera is reading the light and giving you the results. Let's talk about exactly how your camera is metering the light and which patterns, because there are different patterns that you can choose. Traditionally, cameras used a center weighted metering system. It was a good, fairly simple averaging system that looked in the middle circle of your image and measured the light in that particular area, and a little bit more heavily the closer it was towards the center of the frame. And this was a pretty good general purpose light meter, but there was a lot of situations in which it failed. A good example of where it wouldn't work out too well is in a situation like this, where you have a very bright background. The next development in meters was a spot meter, which was a highly concentrated area that you were just reading, typically, straight in the middle of the frame. This is very good if you wanted to check the skin tones of somebody who was wearing all black and you wanted to check how much light is reflecting off of their cheek or forehead. You could do that with a spot meter. So very good for getting a detailed reading of a very small area. So you would take a reading off the cheek. It could also be used in landscape photography, where you would take multiple readings and you would see the range of brightness. What's the brightest thing in the photograph and what's the darkest thing in the photograph and then they would choose which aperture or shutter speed settings to set to get in between this. So this is a multi spot metering system. The next development is what I call a multi-segment system. This is something that goes by different names by different manufacturers. I'll share those names with you in just a moment, but this is where it breaks the scene, essentially, up into a bunch of spot metering areas and now what it can do is it measures the bright areas; it measures the dark areas and it comes up with an average for the entire scene. The fact of the matter is these multi-segment metering systems, they do a fantastic job. They're really, really very advanced. They're using a lot of technology and processing in order to get this information and it does an amazingly good job, but it's what I recommend most of the time. In fact, it's what I use pretty much all the time, because it's very, very accurate and we also have some things that we're gonna talk about, in the next section, where we don't need to spend a lot of time in this topic here. For Canon and Nikon, that multi-segment metering system goes by the name either Evaluative or Matrix. They also have spot metering and they have center-weighted and it's illustrated by their little icons that they have in their camera. Nikon has a special one that we're not gonna get into, called highlighted weighted metering. That's something I'll talk about in my Nikon D750 and D810 class, for instance. Canon has another one called partial metering, which is kind of a step between spot and center-weighted, so it's just a different size circle. But most of the time, to be honest with you, I just keep it on the multi-segment metering system. It does a great job. I haven't forgot about all the other users out there. For everyone else, the multi-segment metering system, they all kind of look similar if you look at their little symbols as to their digital ESP or multiple segment, things like that. But on most of the decent cameras, these days, you will have a multi-segment metering system. You'll have a spot metering system and you'll have a center weighted metering system. If I was teaching this class 20 years ago and this was being broadcast on CreativeLive 20 years ago; think about some problems with that (laugh); we would probably be talking quite a bit about our film photography and I would probably go on for a whole section about how to spot meter your photographs. This used to be the most accurate way of reading the light so that you could set the exposure and it's a tricky, kind of complicated way to get into it and I don't even bother with it anymore, because in the days of digital, you can look at the results and you can have much better feedback out in the field knowing you got the right exposure without having to get into the tricky use of spot meters. Having said that, you're gonna find people who do like using the spot meter and it's a great, great tool. It's just not a tool that I particularly use and I think it's a little bit more complicated than most people need to get into, but it is a valuable tool out there that some people very much like.

Class Materials

Free Download

Fundamentals of Photography Outline

Bonus Materials with Purchase

Learning Project Videos
Learning Projects PDF
Slides for The Camera Lessons 1-13
Slides for The Sensor Lessons 14-18
Slides for The Lens Lessons 19-31
Slides for The Exposure Lessons 32-42
Slides for Focus Lessons 43-62
Slides for The Gadget Bag Lessons 63-72
Slides for Light Lesson 73-84
Slides for the Art of Edit Lessons 85-93
Slides for Composition Lesson 94-105
Slides for Photographic Vision Lessons 106-113

Ratings and Reviews

a Creativelive Student
 

Love love all John Greengo classes! Wish to have had him decades ago with this info, but no internet then!! John is the greatest photography teacher I have seen out there, and I watch a lot of Creative Live classes and folks on YouTube too. John is so detailed and there are a ton of ah ha moments for me and I know lots of others. I think I own 4 John Greengo classes so far and want to add this one and Travel Photography!! I just drop everything to watch John on Creative Live. I wish sometime soon he would teach a Lightroom class and his knowledge on photography post editing.!!! That would probably take a LOT OF TIME but I know John would explain it soooooo good, like he does all his Photography classes!! Thank you Creative Live for having such a wonderful instructor with John Greengo!! Make more classes John, for just love them and soak it up! There is soooo much to learn and sometimes just so overwhelming. Is there anyway you might do a Motivation class!!?? Like do this button for this day, and try this technique for a week, or post this subject for this week, etc. Motivation and inspiration, and playing around with what you teach, needed so much and would be so fun.!! Just saying??? Awaiting gadgets class now, while waiting for lunch break to be over. All the filters and gadgets, oh my. Thank you thank you for all you teach John, You are truly a wonderful wonderful instructor and I would highly recommend folks listening and buying your classes.

Eve
 

I don't think that adjectives like beautiful, fantastic or excellent can describe the course and classes with John Greengo well enough. I've just bought my first camera and I am a total amateur but I fell in love with photography while watching the classes with John. It is fun, clear, understandable, entertaining, informative and and and. He is not only a fabulous photographer but a great teacher as well. Easy to follow, clear explanations and fantastic visuals. The only disadvantage I can list here that he is sooooo good that keeps me from going out to shoot as I am just glued to the screen. :-) Don't miss it and well worth the money invested! Thank you John!

Vlad Chiriacescu
 

Wow! John is THE best teacher I have ever had the pleasure of learning from, and this is the most comprehensive, eloquent and fun course I have ever taken (online or off). If you're even / / interested in photography, take this course as soon as possible! You might find out that taking great photos requires much more work than you're willing to invest, or you might get so excited learning from John that you'll start taking your camera with you EVERYWHERE. At the very least, you'll learn the fundamental inner workings and techniques that WILL help you get a better photo. Worried about the cost? Well, I've taken courses that are twice as expensive that offer less than maybe a tenth of the value. You'll be much better off investing in this course than a new camera or a new lens. I cannot reccomend John and this course enough!

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