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What is an SLR?

What is an SLR? provides you with in-depth training on Photography. Taught by Ben Long as part of th… Show More

Shooting with the Canon Rebel T3i (600D and Kiss X5)

with Ben Long

Video: What is an SLR?

What is an SLR? provides you with in-depth training on Photography. Taught by Ben Long as part of the Shooting with the Canon Rebel T3i (600D and Kiss X5)
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  1. 5m 59s
    1. Welcome
      1m 27s
    2. What is an SLR?
      2m 39s
    3. How to use this course
      1m 53s
  2. 22m 21s
    1. Basic camera anatomy
      2m 40s
    2. Attaching a lens to your camera
      2m 36s
    3. Batteries and media cards
      2m 44s
    4. Powering up
      2m 24s
    5. Menu navigation and factory defaults
      4m 1s
    6. Setting the date and time
      1m 31s
    7. Setting the language
      1m 8s
    8. Formatting the media card
      2m 48s
    9. Holding the camera
      2m 29s
  3. 21m 23s
    1. Setting Auto mode
      4m 14s
    2. The viewfinder display
      5m 31s
    3. The LCD screen
      2m 15s
    4. Autofocus basics
      2m 38s
    5. Lens controls
      1m 17s
    6. Flash in Auto mode
      1m 26s
    7. Image review
      2m 28s
    8. Image playback
      1m 34s
  4. 21m 14s
    1. What Program mode does
      1m 57s
    2. Exposure compensation
      2m 15s
    3. Metering revisited
      1m 57s
    4. Changing ISO
      2m 51s
    5. Program shift
      2m 30s
    6. Image format and size
      4m 21s
    7. Creative Auto mode
      2m 20s
    8. The Info button
      1m 17s
    9. The Quick Control button
      1m 46s
  5. 6m 21s
    1. Manually selecting a focus point
      2m 33s
    2. Focus modes
      1m 19s
    3. Manual focus
      2m 29s
  6. 7m 30s
    1. Auto white balance
      1m 54s
    2. White balance presets
      2m 7s
    3. Manual white balance
      3m 29s
  7. 8m 56s
    1. Drive mode
      3m 16s
    2. The self-timer
      2m 19s
    3. Remote controls and Bulb mode
      3m 21s
  8. 19m 39s
    1. Metering modes
      2m 19s
    2. Exposure lock
    3. Aperture Priority mode
      2m 50s
    4. Depth-of-field preview
      2m 11s
    5. Shutter Priority mode
      2m 23s
    6. Manual mode
      2m 46s
    7. Auto exposure bracketing
      2m 35s
    8. Auto lighting optimizer
      1m 59s
    9. Peripheral illumination correction
      1m 40s
  9. 18m 0s
    1. Metadata display
      3m 2s
    2. LCD brightness
    3. Rotation
      1m 4s
    4. Rating images
      1m 43s
    5. Applying creative filters
      2m 6s
    6. Protecting and deleting images
      3m 26s
    7. File numbering options
      2m 51s
    8. Creating folders
    9. Copyright information
      2m 8s
  10. 4m 56s
    1. What is a scene mode?
      1m 8s
    2. Scene modes and image formats
      3m 48s
  11. 6m 34s
    1. Fill flash
      1m 2s
    2. Flash exposure compensation
      1m 52s
    3. Red-eye reduction
      1m 36s
    4. Night Portrait scene mode
      2m 4s
  12. 6m 59s
    1. Picture styles defined
      2m 7s
    2. Selecting a picture style
      1m 38s
    3. Adjusting predefined styles
      2m 20s
    4. Monochrome picture styles
  13. 13m 53s
    1. Activating Live view
      4m 42s
    2. Focusing in Live view
      5m 31s
    3. Aspect ratio
      1m 35s
    4. Live view's drawbacks
      2m 5s
  14. 12m 55s
    1. Configuring and activating video
      5m 17s
    2. Focusing
      4m 6s
    3. Exposure control
      2m 11s
    4. Movie playback
      1m 21s
  15. 14m 54s
    1. Custom menus
      2m 11s
    2. Custom functions
      1m 31s
    3. Exposure level increments
      1m 0s
    4. ISO expansion
      1m 8s
    5. Long exposure noise reduction
      1m 9s
    6. High ISO speed noise reduction
      1m 46s
    7. Highlight tone priority
      1m 41s
    8. AF-assist beam firing
    9. Mirror lockup
      1m 17s
    10. Shutter/AE Lock button
      2m 15s
  16. 4m 37s
    1. Camera and sensor cleaning
      1m 4s
    2. Operating conditions and temperatures
      2m 9s
    3. Firmware updates
      1m 24s
  17. 23s
    1. Goodbye

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What is an SLR?
Video duration: 2m 39s 3h 16m Beginner


What is an SLR? provides you with in-depth training on Photography. Taught by Ben Long as part of the Shooting with the Canon Rebel T3i (600D and Kiss X5)


What is an SLR?

All cameras have at least one thing in common, they have a lens that sits in front of a focal-plane. On that focal-plane is a recording medium either a piece of light sensitive film or paper or a digital image sensor. The focal-plane needs to sit directly behind the lens, because the lens is used to focus light onto your recording medium. Another way to think of it is that the recording medium looks through the lens. What's tricky about camera design is that if the recording medium is sitting there and looking through the lens, how is there a room for you to look through the lens to frame your shot? Camera designers have wrestled with this problem since the beginning of photography and they've come up with lots of solutions.

For example, with a view camera, you actually take the recording medium off so that you can look through your lens to line up the shot, and then you put the recording medium back on. Needless to say this doesn't make for particularly speedy shooting. In a twin-lens reflex camera you look through one lens and a second lens exposes the film. However, if I'm shooting up close, my framing might be off due to the parallax shift between the two lenses. Similarly, in a rangefinder camera I look through this viewfinder while the camera looks through this lens.

I still might have parallax issues, but with a camera like this I can actually change lenses and still have a viewfinder that works. The SLR or Single-Lens Reflex solves all of the issues with these other designs. With an SLR is just one lens, a single lens, and both you and the recording medium look through that same lens. To make that happen, there are a lot of mirrors involved. So my image sensor is back here, and my viewfinder is up here, and obviously here is my lens. Light comes in here.

It needs to get back to the image sensor back here when I finally take the picture, but it needs to get up here for me to be able to have any kind of viewfinder, and that's where all these mirrors come in to play. First of all, there is a mirror directly behind the lens. I'm going to take the lens off here and you can actually see it. There is a mirror right inhere. Now when I press the shutter button that mirror flips up, that's the reflex part of SLR, and with the mirror up, light can then get straight back to the image sensor that's behind the shutter.

In this video right here you can see in slow motion that shutter button being pressed and then the mirror popping up, the shutter opening and closing and then the mirror coming back down. So when the mirror is down like it is here, light is bouncing up here into this pentamirror that's up here and going back out to the viewfinder where I can see it. When I press the shutter button, the mirror comes out of the way, so that light can go straight back to the image sensor.

Find answers to the most frequently asked questions about Shooting with the Canon Rebel T3i (600D and Kiss X5) .

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Q: Will the lessons in this course work with the Canon T3 too?   
A: The main differences between the Canon T3i and the T3 are some video capabilities. Other than that, and some minor menu differences, you should be able to use the lessons in this course with the T3 with no issues.





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