- DSLR stands for digital single-lens reflex
- It basically means a camera with one lens and a mirror which reflects the light, where pictures are recorded on a digital card instead of film
To get started best to use the automatic settings:
- Set the dial to the green automatic mode.
- Make sure the lens is set to AF and not MF
- 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
Exposure
- Aperture, ISO and shutter speed directly affect exposure.
- Exposure - the amount of light a digital camera's sensor captures when a photo is a taken.
- Overexposed - Too much light results in a washed out image
This image is overexposed as the trees are unclear due to the highly illuminated areas
- Underexposed - Too little light.
The exposure is underexposed as this image of a castle is very dark
- Aperture settings - controls the size of the lens opening that allows light into your camera
- Shallow depth of field - You can blur the foreground or background that bracket your subject by opening up the aperture with a low f-stop number
The water is clearly visable, the foreground has been blurred
- Wide depth of field - You can keep your photo sharp from the foreground through to the background by closing the aperture down with a high f-stop number
The skyline and rocks are both clear, sharp and not blurred out
Shutter speed
- Controls how long the shutter opens to exposed the image sensor to that light
- Fast shutter speed - Open it just for a millisecond & you can freeze a fast moving object
This image has been frozen so that this specific shot can be taken.
- Slow shutter speed - You can show the movement of a fast-moving subject by keeping it open longer
The train was moving very fast therefore, is represented like so.
ISO
- Higher the ISO - The more sensitive the sensor will be and the brighter the image will be. High ISO will cause graininess.
- Lower the ISO - The less light it's going to bring in, and the image is going to appear darker.
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