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Shooting with the Canon 5D Mark III
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Customizing servo auto focus


From:

Shooting with the Canon 5D Mark III

with Ben Long

Video: Customizing servo auto focus

If you shoot in servo focus mode, that is, if you ever are dialed in here to AI Servo, or AI Focus, which might drop into servo mode; in either of those cases, you might want to tweak the way that servo focus is working. If you think about it, moving objects can move in different ways. They might be moving in a particular direction; predominantly horizontally, or vertically. They might move with different speeds. They might start, and stop. To that end, the first page of the autofocus tab gives you different cases of autofocus tracking; of servo tracking.
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  1. 10m 29s
    1. Welcome
      2m 16s
    2. What is an SLR?
      5m 28s
    3. A note for 5D Mark II users
      50s
    4. Using this course
      1m 55s
  2. 35m 44s
    1. Exploring basic camera anatomy
      5m 28s
    2. Attaching a lens to your camera
      4m 3s
    3. Examining batteries and media cards
      8m 35s
    4. Powering up
      1m 49s
    5. Exploring the menu system
      2m 53s
    6. Clearing all settings
      2m 5s
    7. Setting the date and time
      1m 55s
    8. Setting the language
      1m 42s
    9. Formatting the media card
      3m 4s
    10. Holding the camera
      4m 10s
  3. 25m 6s
    1. Setting Scene Intelligent Auto mode
      1m 28s
    2. Exploring the viewfinder display
      5m 51s
    3. Touring the LCD screen and the status display
      2m 22s
    4. Exploring the top-mounted control buttons
      1m 42s
    5. Autofocus basics
      5m 7s
    6. Metering basics
      1m 42s
    7. Reviewing images
      2m 59s
    8. Working with image playback
      3m 55s
  4. 39m 32s
    1. Exploring Program mode
      41s
    2. Working with exposure compensation
      5m 2s
    3. Using the lock switch
      1m 21s
    4. Revisiting metering
      1m 43s
    5. Changing the ISO
      2m 14s
    6. Looking at ISO speed settings
      4m 36s
    7. Exploring long exposure noise reduction
      2m 53s
    8. Exploring high ISO noise reduction
      1m 40s
    9. Using program shift
      2m 11s
    10. Exploring image format and size
      3m 59s
    11. Using the Info button
      2m 4s
    12. Examining level and grid display
      3m 45s
    13. Using the Quick Control screen
      1m 35s
    14. Setting the color space
      1m 25s
    15. Configuring multiple media cards
      3m 24s
    16. Using the feature guide
      59s
  5. 23m 15s
    1. Exploring focus modes
      2m 25s
    2. Selecting autofocus areas
      3m 54s
    3. Exploring other autofocus options
      3m 44s
    4. Customizing servo auto focus
      4m 49s
    5. Exploring autofocus custom functions
      4m 50s
    6. Using manual focus
      3m 33s
  6. 10m 31s
    1. Using auto white balance
      1m 48s
    2. Exploring white balance presets
      3m 7s
    3. Using manual white balance
      5m 36s
  7. 10m 47s
    1. Exploring Drive mode
      4m 52s
    2. Using the self-timer
      3m 38s
    3. Using remote controls
      2m 17s
  8. 52m 26s
    1. Exploring metering modes
      3m 26s
    2. Using exposure lock
      1m 22s
    3. Working with focus points and metering
      3m 47s
    4. Exploring Aperture Priority mode
      3m 0s
    5. Using the depth of field preview button
      2m 40s
    6. Using Shutter Priority mode
      3m 26s
    7. Using Manual mode
      3m 27s
    8. Using auto exposure bracketing
      6m 3s
    9. Exploring Bulb mode
      2m 34s
    10. Working with the Auto Lighting Optimizer
      1m 40s
    11. Correcting lens aberration
      2m 46s
    12. Exploring Highlight Tone Priority
      2m 25s
    13. Understanding high-dynamic range (HDR)
      7m 5s
    14. Creating multiple exposures
      6m 25s
    15. Using the mirror lockup feature
      2m 20s
  9. 27m 38s
    1. Modifying LCD brightness
      3m 27s
    2. Rotating images
      2m 36s
    3. Using the playback grid
      42s
    4. Enabling AF point display
      1m 18s
    5. Rating images
      3m 4s
    6. Protecting and deleting images
      4m 40s
    7. Using Quick Control during playback
      1m 17s
    8. Exploring file numbering options
      2m 43s
    9. Creating folders
      1m 10s
    10. Changing file names
      3m 12s
    11. Adding copyright information
      3m 29s
  10. 7m 57s
    1. Defining picture styles
      2m 0s
    2. Exploring predefined picture styles
      2m 1s
    3. Adjusting predefined picture styles
      1m 56s
    4. Working with the monochromatic picture style
      2m 0s
  11. 22m 28s
    1. Activating Live View
      7m 16s
    2. Focusing in Live View
      5m 32s
    3. Focus manually in Live View
      1m 25s
    4. Working with aspect ratio
      2m 33s
    5. Exploring other Live View options
      3m 36s
    6. Reviewing the drawbacks to using Live View
      2m 6s
  12. 12m 16s
    1. Shooting video in Auto and Program modes
      6m 39s
    2. Shooting video in Priority or Manual modes
      3m 35s
    3. Exploring movie playback
      2m 2s
  13. 13m 0s
    1. Exploring custom modes
      5m 38s
    2. Using the custom menu
      2m 56s
    3. Exploring custom controls
      4m 26s
  14. 8m 57s
    1. What are custom functions?
      35s
    2. Working with exposure level increments
      1m 34s
    3. Bracketing auto cancel
      53s
    4. Changing the number of bracketed shots
      1m 5s
    5. Changing ISO speed setting increments
      1m 34s
    6. Exploring the Live View shooting area display
      40s
    7. Enabling safety shift
      2m 6s
    8. Clearing all custom functions
      30s
  15. 8m 16s
    1. Camera and sensor cleaning
      3m 12s
    2. Using the Battery Info command
      1m 45s
    3. Looking at operating conditions and temperatures
      2m 3s
    4. Getting firmware updates
      1m 16s
  16. 15m 10s
    1. Exploring focus and composition
      5m 31s
    2. Using an exposure strategy
      5m 11s
    3. Controlling exposure through Program mode
      4m 28s
  17. 23s
    1. Goodbye
      23s

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Shooting with the Canon 5D Mark III
5h 23m Beginner Nov 08, 2012

Viewers: in countries Watching now:

In this course, photographer and author Ben Long details the features, controls, and options in the Canon 5D Mark III digital SLR. The course begins with an overview of what a digital SLR is and takes a tour of the basic camera components. Ben then discusses the basic camera operation: changing lenses, navigating the menus, shooting in automatic mode, reviewing and managing photos on the LCD screen, and transferring photos to a computer.

Next, the course introduces more advanced exposure options: program mode, exposure compensation, ISO adjustments, and more. After Ben briefly defines each option, he shows how to adjust it using the camera controls.

Ben also discusses white balance options, advanced metering and autofocus controls, flash, live view, and video shooting. The course ends with a chapter on maintenance, including sensor- and camera-cleaning and care tips.

Topics include:
  • What is a DSLR?
  • Attaching lenses
  • Powering up and down
  • Formatting the media card
  • Holding the camera
  • Shooting in the Auto and Program modes
  • Changing the ISO
  • Controlling autofocus and white balance
  • Using a self-timer
  • Working with the exposure control options
  • Activating Live View
  • Shooting video
Subjects:
Photography Cameras + Gear
Software:
5D Mark III
Author:
Ben Long

Customizing servo auto focus

If you shoot in servo focus mode, that is, if you ever are dialed in here to AI Servo, or AI Focus, which might drop into servo mode; in either of those cases, you might want to tweak the way that servo focus is working. If you think about it, moving objects can move in different ways. They might be moving in a particular direction; predominantly horizontally, or vertically. They might move with different speeds. They might start, and stop. To that end, the first page of the autofocus tab gives you different cases of autofocus tracking; of servo tracking.

For each of these cases, there are three parameters that Canon is changing: Tracking sensitivity, Acceleration and deceleration tracking, and Autofocus point switching. We'll look at what those individual parameters are in a minute. First, let's look at what these different cases are. Basically, these are five different collections of different settings for these three parameters. Case 1, Canon describes as just a versatile multipurpose setting. If you look at page 86 of your manual, you'll see more detailed descriptions of what each case is.

Case 2 says it will continue to track subjects, ignoring possible obstacles. So if you've got something that's moving behind, like, a telephone pole, or another moving object, it will continue to track your original subject. Case 3 claims to instantly focus on subjects suddenly entering autofocus points. So this means, if you're tracking one object at a certain distance, and another object comes into frame, and actually by frame, I mean comes over any of your autofocus points, it will switch to that object.

Maybe you're shooting a foot race, and you're tracking someone who is in the lead, and someone suddenly overtakes them, runs into your field of view, and overtakes them, it would start tracking that person. Case 4 is for subjects that accelerate or decelerate quickly, and they're kind of showing a soccer player here, which might not be a bad example of what that is. Case 5, for erratic subjects moving quickly in any direction, and they're showing you either someone who's an ice skater, or is slipping on a banana peel; I can't really tell. Either of those is going to be someone quickly moving in any direction.

Finally, we have subjects that change speed and move erratically, and I couldn't begin to tell you what the person in this icon is doing, but if you think about a tennis player, or somebody that might suddenly change direction, even though they've got a tennis player icon up here. Obviously, you're going to need to work with these in different cases to see what works best. So let's say I want to change the particulars of this case. As you can see, first of all, I can get some help here by pressing the Info button, although it doesn't really give me a lot of help.

I can also press the Rate button to get to my Detail settings. So if I press Rate, now these things become editable. Tracking sensitivity is basically controlling how sensitive the camera is to the subject moving from one point to another. Acceleration/deceleration tracking controls sensitivity for a subject who's suddenly changing speed, and Autofocus point switching sets a sensitivity to a subject that's moving fast enough that they're suddenly going from one point to another.

Now, when you're working with these, notice that the scales aren't normalized the same way. In this case, zeroes are in the middle, and you can have less or more. Here I can't have less; I can only have more. There are detailed descriptions of these parameters starting on page 90 of your manual, and if you're really going to go in and mess with the stuff, you're going to want to read those pages in great detail. I'm going to make sure these are set to the default right now by hitting the trashcan button, and get out of here, because I don't actually want to change any of those. One important thing to know about servo tracking, and about the Mark III's autofocus system in general, is that those 61 points are not all equal.

Some can measure focus only vertically, some measure horizontally, some measure on multiple axes. You can see a diagram of that on page 78. It's a complex diagram, and to be honest, you don't really need to know this stuff. If you're really going to go in and maniacally tweak one of these autofocus cases, then understanding the points may make a little bit of difference, but probably not. The other thing to know is that different Canon lenses use different numbers of focus points. Not all Canon lenses can use all 61 focus points, and you can see which lenses use which focus points starting on page 79.

If you are going to be doing a lot of servo tracking, you're going to want to consult that part of your manual to find out if the lens that you're using actually can use all of the focus points that the Mark III has. If it cannot, and servo tracking is something that you really need capability for, then you may need to invest in a new lens. There's a lot of depth to the servo tracking feature, so you're going to want to review those parts of your manual very carefully.

There are currently no FAQs about Shooting with the Canon 5D Mark III.

 
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