Thursday, 6 October 2016

Introduction to the DSLR

Introduction to the DSLR

  • DSLR stands for Digital Single Lens Reflex.
  • It basically means a camera with on lens and a mirror which reflects the light, where pictures are recorded on a digital card instead of film. 
  • To get started, it's best to use the automatic settings to get accustomed to the camera:
    • set the dial to the green automatic mode.
    • make sure the lens is set to AF (autofocus) and not MF (manual focus).
    • push the shutter button down halfway- the camera will automatically focus on the subject.
    • push the button down the rest of the way to take the picture.
  • Canon: Outside of Auto
    • a great online tool that lets you play around with a virtual DSLR and the three primary camera settings: ISO, shutter speed and aperture.
  • Exposure
    • exposure is the amount of light a digital camera's sensor captures when a photo is taken.
    • too much light results in a washed out photo (overexposed).
    • too little light and the photo will be too dark (underexposed).
    • a camera's aperture, shutter speed and ISO settings directly affect exposure, but more importantly, they allow you to control how each photo will look.
  • Aperture
    • the aperture settings control the size of the lens opening that allows light into your camera.
    • you can blur the foreground and background that bracket your subject (known as shallow depth of field) by opening up the aperture with a low f-stop number.
  • Shutter Speed
    • the shutter speed setting controls how long the shutter opens to expose the image sensor to that light.
    • open it for just a millisecond and you can freeze a fast moving subject.
    • alternatively, you can show the movement of a fast moving subject by keeping iy open longer with a slow shutter speed. 
  • ISO
    • the ISO is how sensitive your image sensor is to light.
    • with the ISO setting, a camera's image sensor can be adjusted to detect more, or less light as needed for a good exposure.
    • the higher the ISO, the more sensitive the sensor will be, and the brighter the image will be.
    • the lower the ISO, the less light it's going to bring in, and the darker the image is going to be.
    • if you're shooting in low-light, you will want to boost your ISO so that the image will be brigher.
    • if you're shooting in a bright, sunny place, you'll want to lower your ISO, or the image will be overly-bright.
    • high ISO will cause graininess so as a rule, use the lowest ISO possible. 

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