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Focus Stacking and Post Sharpening

Lesson 61 from: Fundamentals of Photography 2016

John Greengo

Focus Stacking and Post Sharpening

Lesson 61 from: Fundamentals of Photography 2016

John Greengo

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Lesson Info

61. Focus Stacking and Post Sharpening

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

Focus Stacking and Post Sharpening

Okay a few other little things here to wrap up this focusing section. Macro photography is really difficult because you get extremely shallow depth of field, as you can see here at F/2.8. Suppose I want this entire bill in focus from this angle of view. I can stop the lens down to F/22, but you can see by the edges, I still can't hold focusing across this bill because I'm kind of shooting it at an angle here. And there is no way in camera to really fix this problem. I just don't have enough depth of field. And there might be a situation out in the real world where you just don't have enough depth of field. So there is a technique called focus stacking, where you shoot multiple photos, changing the focus of each picture, and taking the resulting photos, working with them in a software program that combines them all into one photo. So in this case, I had to take, I forget how many shots, about 50 different shots, in order to get enough focus going from the front edge to the back edge of ...

this bill so that I could get sharp focus from near to far in this situation. I think it's kind of funny because even before I had the software, even before I knew the software really existed, I had a situation where I couldn't get enough depth of field for the shot that I wanted. And so I shot it at all these different focusing scenes, hoping that someday I would have software where I could fix this problem. So this is a bunch of tree branches down in California and I stopped it down to F/32 to get as much depth of field, to do the best I could at the time. But I also shot some other pictures at more prime apertures that were sharper like F/8 and F/11. And then what I did was I adjusted focus and I took another photo. I adjusted focus. And I took another photo. And I ended up with about 10 photos, each with a slightly different focus with them. And so later, when I got some focus stacking software, I was able to go in and stack them all and get one final sharp image. And if you're wondering well, does it make that much of a difference? Doesn't the F/32 look pretty good? Well, here's a comparison between F/32 versus focus stacking when it comes to sharpness. So there's our focus stacking, and there's our F/32. And I can clearly see a sharpness difference there. So if that's important to you, this is a technique that's become quite popular with landscape photographers in the last several years as a way of increasing the sharpness of the foreground to background sharpness. There's a number of tricks. The simplest is just stopping the aperture down. This would be another one. Getting that foreground and background in focus. Another trick is those tilt-shift lenses that we talked about in the lens section. So there's multiple techniques for solving problems. Here is a standard macro shot. I like the standard shot because the background is really out of focus, but I don't like it because parts of the flower are not in focus. It's a very shallow depth of field. If I want this whole little flower in focus, well then, the background really has to be in focus. I can selectively shoot a few shots and keep the flower entirely in focus, but never really focusing on the background. So it allows me to do something that I would never be able to in camera. And so in a situation like this where I'm using a telephoto lens, it's just hard to hold focus in the foreground. And so what I'll do is I will shoot at multiple different focusings, and you'll see there's a slight magnification change, the size of the subject changes ever so slightly. And now combining all of them from top to bottom, from left to right, it's going to be very sharp in focus. How many pictures you shoot depends on the subject. What typically happens is you want to back off where you're getting diffraction at F/22 and 32, to something like F/8 and F/11, and then shoot as many pictures as you need to, reaching from the foreground to the background, probably erring on the side of shooting a bit more than a bit less, so that you make sure that the focus overlaps on each one. And that was with Helicon software. Now you can also do some sharpening in Post. So once you are done with the photograph, if you shoot raw, it's probably going to need a little bit of sharpening. All raw images need a little bit of sharpening. JPEG images have sharpening done to them in camera. But you have to be careful. And in the early days of Photoshop, we saw a lot of photos where people said, "Oh, you can sharpen photos? "Excellent! "Let me do it to 150%." And it looked a little too much. And so you can see over on the right hand side, we have sharpened this image too much. I think I can zoom in once more. And if you'll notice around this leaf on the right hand side, what sharpening does is it tries to add a very contrasty edge, and so it takes this edge and it adds a black line and white line. It doesn't really add that line, but it heightens the brightness of the white and it darkens the dark of it to make it seem more distinct. It's not actually making it sharper. It's just increasing the contrast in particular areas. And when I said at the beginning of this class you have to nail focus, what I mean is you have to be about 99% on, alright? You're allowed about a 1% mess-up. Now the other thing that goes on top of this is it depends on how big your image is going to be. If you're going to throw it up on the Internet, and it's going to be a little tiny headshot, it's not super critical. It depends on the size that it's going to be viewed at by somebody viewing it. So that's the other factor. But this doesn't fix out of focus images. It generally makes a sharp image nice and sharp when viewed on a print form, and if something was just a hair out, it might help it a little bit, but once you get more than 1% off.

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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