Lessons
Class Introduction
07:11 2Canon Lens Basics
14:12 3Focal Length: Angle of View
11:31 4Focal Length: Normal Lenses
09:43 5Focal Length: Wide Angle Lenses
18:15 6Focal Length: Telephoto Lens
21:27 7Focal Length Rule of Thumb
15:36 8Field of View
10:14Aperture Basics
04:41 10Aperture: Maximum Aperture
18:44 11Aperture: Equivalent Focal Length
07:48 12Aperture: Depth of Field
06:23 13Aperture: Maximum Sharpness
08:33 14Aperture: Starburst Effect
05:18 15Aperture: Flare
06:48 16Aperture: Hyperfocal Distance
19:32 17Camera Mount System
14:57 18Canon Lens Compatibility
14:26 19Canon Lens Design
12:29 20Canon Lens Composition
04:30 21Canon Lens Shape
05:50 22Canon Lens Coating
06:53 23Canon Lens Focusing
14:10 24Lens Autofocus
08:17 25Canon Lens Image Stabilization
06:57 26Canon L Lenses
10:18 27Image Quality
09:46 28Canon Zoom Lenses: Standard
17:50 29Canon Super Zooms
05:20 30Canon Wide Zooms
09:48 31Canon Telephoto Zooms
16:09 32Prime Lens: Normal Lenses
09:19 33Prime Lens: Moderate Wide
07:01 34Prime Lens: Wide Angle
05:33 35Prime Lens: Ultra-Wide
09:23 36Prime Lens: Short Telephoto
09:03 37Prime Lens: Medium Telephoto
08:59 38Prime Lens: Super Telephoto
13:59 393rd Party Lenses Overview
06:01 403rd Party Prime Lenses
15:25 413rd Party Zoom Lenses
26:28 42Lens Accessories: Filters
33:42 43Lens Accessories: Lens Hoods
09:58 44Lens Accessories: Tripod Mount
04:51 45Lens Accessories: Extension Tubes
04:30 46Lens Accessories: Extenders
13:11 47Macro Lens: Reproduction Ratio
18:59 48Macro Lens: Technique and Choices
25:59 49Fisheye: Technique and Choices
18:49 50Tilt Shift: Techniques and Choices
27:08 51Make a Lens System Choice
05:37 52Choosing A Portrait Lens
17:21 53Choosing A Sports Lens
17:31 54Choosing A Landscape Lens
10:39 55Best Lenses for You
08:46 56Lens Maintenance
11:19 57Buying and Selling Lens
11:15 58What is John Greengo's Favorite Lens?
08:37Lesson Info
Canon Lens Image Stabilization
stabilization was first put into a lens from Canon and has since been followed by pretty much all the other manufacturers. If we kind of walked back through the line of history, we can see how it's improved on what's important. So was introduced in 1995 in the 72 300 that has long since been discontinued. And what it's doing is it is employing and boy, I would have hate. I'm glad it was not a lens designer. When somebody says, Yeah, we want to design a lens that has these lens elements that move inside the lenses. You're focusing, all right, So what's happening is as you move the camera, the lens elements for a stabilization will be doing something different than all the other lenses in order to keep the light rays going to the correct spot on the image sensor. And so it's got an independent Giro in the lens that is looking at your movements and doing a counter movement so that the image that ends up on the image sensor is steady throughout that time. At the beginning, it took one seco...
nd to stabilize for this thing to kind of figure things out and it had two stops of control, which means it helps you to shutter speed. Stop slower than you would normally be ableto handful the lens to take a 60 millimeter lands, you would need 1/60 of a second. Now you could shoot it 1/ and down to 1/15 of a second. That's the two stops. As we move along, they added a motew for panning in 1999 the added tripod detection, which is still a little iffy. I still recommend turning it off on a tripod. They increased the speed at which it was able to figure out how to stabilize down too 1/2 2nd and they added an extra stop control, so they able to figure out how to keep it even steadier. 2006. They went all the way up to four stops a control, but he thinks gonna happen next five stops and the added hybridize with trying to explain here in a moment 2011 they added a mode three that Onley did this during the exposure. It helps certain types of sports photographers in panning and watching their subjects the to keep the frame from not moving around too much. So it's something that's used on typically the bigger sports lenses. And then I think maybe this is the most interesting one. In 2014 they actually decided to get certified. And so there is an industry standard. Everything before 2014. It's just cannon over there saying, Yeah, it's good for two stops. It's good for three stops. We think it's good for five stops, a stabilization. And now they actually have to adhere to standards that Nikon and Sony and Olympus and everyone else adheres to. So I kind of think of pre 2014 is in the steroid era, all right. These numbers are all kind of blown out of proportion on lenses, and we'll see this when we get to the list of lenses. So on some of the big lenses they have these 12 and three markings. One is your normal hand held stabilizer on mode, which means as you tilt and kind of twist back and forth, it's going to stabilize your movement. Your your hand movements in the little jitter in holding your camera. The bigger white lenses are gonna have a mode to which is used for panting, cause when you're panning, you don't want the camera to correct for your horizontal movement. You just want it to correct for your vertical movement. And the camera consents, whether you're holding the camera vertically or horizontally and when your camera holding the camera horizontally. What it does is it turns off thank you the side to side movements and so you can pan and keep your subject exactly in the same spot in the frame, you turn the camera vertically. It understands your shooting vertical can sense the motion of the camera and Comptel that you're panning from side to side like that. There is a mode three on a few of their very highest and lenses. This is their newest panning mode, and what this does is it turns off the panning system, and Onley turns it on exactly when the exposure is taken. And even though they had that tripod detection system, they claim, trust me, it's better if you do have a rock solid tripod to turn the stabilization off. However, if it's a little windy, you have an 800 millimeter lands that's got a little bit of jitter on it. You probably want to leave the stabilization on. So the question isn't so much. Is it on a tripod or off a tripod? But is it solid, or is it moving a little bit if it's moving a little bit? The stabilization is something that you can turn on a few of these lenses. Most people don't know about this have what is called dynamic stabilization, and this is four stops of effective range. But it works and it's optimized for shooting video. And these are in Ste. Went late. Is that right? I think these were supposed to be STM. I think I made a mistake on the slide here, folks mark this down. These were supposed to be STM lenses that have this feature on it. Then they introduced hybrid stabilization and this works a little differently. It was the first in the 100. Now it's in 24 to 70. Normally it's looking for movement, tilting the camera up and moving the camera from side to side. Okay, but now the hybrid is gonna look for movements up and down and side to side, which is a different type of movement and was not easy to get but makes these incredibly good for stabilization. And so both of these lenses I would classify as their very best in stabilization. Although it's not the most in stops of stabilization in the types of movements in the ways that you hand hold it, these are among the best performers, in my opinion. So in the group of two stops of stabilization is a bunch of lenses that are fairly old at this point. And in this list, which you'll be able to review later in the pdf, I have put little stars by the ones that are CPAs certified, so these are the current ones that are actually accurate. Anything that doesn't have this little star is a slightly bloated number by Canon, usually by a full stop. And so all of these are three stopped stabilized, so they're all await. Excuse me, if it has a star, it is pre SEPA certified, which means all these three stop ones when they say three stop, it's probably two, maybe 2.5 stops a stabilization. Most of their lenses are four stop stabilizers, and that's pretty consistent throughout the line. The lens that has the most stops of stabilization. Is there five stop? But this is pre certification. So this is the steroid induced number that is probably more like four stops, but it's still really nice stabilization system. And so that's the stabilization system within the canon system of lenses.
Class Materials
Bonus Materials with Purchase
Ratings and Reviews
user-b3a96c
I so appreciate what a good teacher John is. I wish I would have known this much about lenses when I first started out buying my lenses. It was hard finding information about lenses. I didn't want to spend money on a lens I wouldn't use. The better understanding we have about our gear the better photographers we will be. I have never seen a class like this. Invaluable...yes I bought the class! I am really impressed with the high quality photography classes available on Creative Live!
Abbeylynne
This was a great class not just about the lenses that Canon offers but also how each lens works. As usual, John's slides are alway informative and entertaining. There is a phrase: John has a slide for that! I am not even a Canon user and found this class to have great information for the use of each specific lens. Great work John! Thank you Creative Live for another great class!
Tami Miller
Have loved the other John Greengo classes I've watched & purchased - and this is another winner! Having been a high school/college science teacher, it is refreshing to take a course with someone who not only is extremely experienced, seems to be a computer having stored so much knowledge, but is equally concerned about making the information truly understandable to different levels. And he shares the information using every tool he can: slides, video, interactive presentations, and great quizzes. I learned so much about my Canon lenses - and lenses in general with their many components. I am excited about testing each of mine to see what macro ratio they handle, and especially appreciated the tutorial on testing each for their specific quirk that affects super sharpness. This class is great whether you own Canon lenses or not. Thanks John Greengo!