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Canon getting started guideeter

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Page 1: Canon getting started guideeter

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Page 2: Canon getting started guideeter

Aperture (AV mode)Aperture controls the depth of field of the image. The depth of field determines which part of the image is effectively sharp and whereabouts the focus is aimed at, meaning the image can be adjusted to focus up close with a blurred background, or it can be made so the whole image is clear.The aperture is measured in Fs. F 3.5 would mean that the close up objects in the image would be very clear, and the background would be blurred, whereas F22 would mean that the whole image would be equally focused.The aperture controls how big or small the opening in the lens is, meaning that if a higher aperture is used then the lens opening will be smaller, whereas a low aperture would open the lens a lot larger. Landscape photography would use a high aperture meaning the lens would be smaller, allowing the full image to be focused up close, middle distanced, and long distanced. A smaller F number would mean the image would be focused close up but not far away, allowing the photographer to focus on a single image.

Page 3: Canon getting started guideeter

This photograph uses an aperture of 22F, meaning that the openening in the lens is very small, allowing the focus to be spread among the whole image. The focus Is very even throughout and is equal from the front all the way to the back.

This image uses 11F, meaning that the front of the image is slightly clearer then the back of the image. The front of the image is clear, until just after the pen, and then a very slight blur appears towards the back of the book and the background.

This photo uses a 3.5F aperture meaning that the lens opening is very wide, allowing the camera to focus only on the pen, and blurring out the whole of the background, and slightly blurring in front of the pen.

22F

11F

3.5F

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Shutter Speed (Tv mode)The shutter speed controls how long the lens is open for. The smaller the fraction of a second the shutter is open for results in a how still the image is. If 1/1000 is used, the shutter will be open for 1/1000 of a second, resulting in a very still image. One problem with a very quick shutter speed is that not as much light can enter the camera meaning the images are often very dark when taken at a shutter speed which is this quick even if the IOS is very high.

Page 5: Canon getting started guideeter

In this image the shutter speed is very low. This makes the image very blurred, but the lighting is ideal due to the fact the shutter is open for longer so more light is let in to the lens.The image is blurred because the slow shutter speed captures every frame from when when shutter is opened to when it closes, meaning a lot of frames are caught and they are put together creating a blur.

The medium length shutter speed still causes a slight bit of blur, but this time is generated mainly from the shake of the camera. The image has become slightly darker, but is still light enough to be visible. Unlike the other image, this image does not have a trail behind it, making the image look blurred, but not effectively blurred, making the image look like the blur should not be there.

This image is taken with a very fast shutter speed. This means the iamge is caught perfectly still even when the person is walking fairly quick. The image is caught still, but without a very high ISO the image appears very dark. There is no camera shake in this image, meaning that I tripod is not needed, unlike with a shutter speed of 1 second, making it easier shooting fast things.

1 Second

1/60

Settings1/320

Page 6: Canon getting started guideeter

ISO settingsThe ISO controls the sensitivity of pixels to light. A 100 ISO is a very un-sensitive ISO, whereas 1600 ISO is very sensitive. This means the ISO can control how bright an image is. When the ISO is raised the pixels gather more “noise” which means the pixels distort and small white and green dots appear on the image.

Page 7: Canon getting started guideeter

This image shows a very low ISO meaning the pixels are not very sensitive to light. This means the image is clear, and there is no noise in the photograph, although a low ISO can sometimes result in a darker image.

The image has started to gain a small bit of noise around the top of the frame. This is shown on the the white line above the boarder where there is slight gradients in the white which are slightly green and white.

At a higher ISO there is a lot of noise along the image. This makes the image appear to be a lower quality, but can also brighten the image, meaning if there is no other way to get the light correct in an image, the ISO can be changed.

ISO 100

ISO 400

ISO

Page 8: Canon getting started guideeter

White BalanceThe white balance effects how an image looks by altering how the filter looks. This means an image can appear more blue, brighter or duller. This means that a photographer can change how an image looks by changing which white balance setting is active.

Page 9: Canon getting started guideeter

Cloudy WBDaylight WB

Fluorescent WBTungsten WB

Daylight WB makes the image look as if the lighting is fairly natural, and the brightness of this white balance is dependent on the natural light.Cloudy WB makes the image look slightly brighter then daylight due to the fact it is used when a landscape is cloudy, meaning not as much natural light will be able to get through the clouds. This White balance allows the image to look naturally lit even when it is cloudy.Tungsten (or cold) white balance makes the image appear slightly blue, making any white in the image have a slight tint to it. This can be used in images such as snowy scenes.Fluorescent White Balance makes the colours more vibrant. This can be seen on the green in the image, and how it looks very bright and vibrant.

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Cropped

Original

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Levels

Dodging and Burning

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Colour Adjustment