Technical Skills for Photography:
Depth of Field:
Depth of field basically means that it is the distance between the nearest and the furthest objects that appears to be in focus.Having a larger field of depth means that more is in focus, while having a smaller depth of field means less is in focus.
The Depth of Field is completely controllable, by using your lens, aperture, and focus.The depth of field does not suddenly change from sharp to un-sharp, but instead occurs as a gradual transition.
Controlling Depth of Field:
lthough print size and viewing distance influence how large the circle of confusion appears to our eyes, aperture and focal distance are the two main factors that determine how big the circle of confusion will be on your camera's sensor. Larger apertures (smaller F-stop number) and closer focusing distances produce a shallower depth of field.
The Circle of Confusion:
Since there is no critical point of transition, a more rigorous term called the "circle of confusion" is used to define how much a point needs to be blurred in order to be realized as un-sharp.
An acceptably sharp circle of confusion is loosely defined as one which would go unnoticed when enlarged to a standard 8x10 inch print, and observed from a standard viewing distance of about 1 foot.
Kelvin Temperature Scale:
Is a measurement in Degrees Kelvin that indicates the hue of a specific type of light source. You can use a colour Temperature (as shown in the chart below) to suggest realistic colours for the lights in a 3D scene.
Visible colours are relative to the Colour Balance (or White Balance) of a film stock or video camera, with the two most common fixed settings being 3200K Indoor colour balance, and 5500K Outdoor (Daylight) colour balance. To pick an RGB value from the chart below, first choose whether your scene would be shot with Indoor or Outdoor film (usually chosen based on the dominant lighting), then find the colour corresponding to the type of light source at that colour temperature.
-The colour variation is referred to as the colour temperature and is measured in degrees Kelvin. The scale ranges from the flame of a candle at around 1900K to deep blue sky at around 10,000k as illustrated by this diagram.
The light source is listed next to the degrees in Kelvin, both set against the colour of the light at each level.If you were using film cameras you would have to use colour correction filters to compensate.
Depth of field basically means that it is the distance between the nearest and the furthest objects that appears to be in focus.Having a larger field of depth means that more is in focus, while having a smaller depth of field means less is in focus.
The Depth of Field is completely controllable, by using your lens, aperture, and focus.The depth of field does not suddenly change from sharp to un-sharp, but instead occurs as a gradual transition.
Controlling Depth of Field:
lthough print size and viewing distance influence how large the circle of confusion appears to our eyes, aperture and focal distance are the two main factors that determine how big the circle of confusion will be on your camera's sensor. Larger apertures (smaller F-stop number) and closer focusing distances produce a shallower depth of field.
The Circle of Confusion:
Since there is no critical point of transition, a more rigorous term called the "circle of confusion" is used to define how much a point needs to be blurred in order to be realized as un-sharp.
An acceptably sharp circle of confusion is loosely defined as one which would go unnoticed when enlarged to a standard 8x10 inch print, and observed from a standard viewing distance of about 1 foot.
Kelvin Temperature Scale:
Is a measurement in Degrees Kelvin that indicates the hue of a specific type of light source. You can use a colour Temperature (as shown in the chart below) to suggest realistic colours for the lights in a 3D scene.
Visible colours are relative to the Colour Balance (or White Balance) of a film stock or video camera, with the two most common fixed settings being 3200K Indoor colour balance, and 5500K Outdoor (Daylight) colour balance. To pick an RGB value from the chart below, first choose whether your scene would be shot with Indoor or Outdoor film (usually chosen based on the dominant lighting), then find the colour corresponding to the type of light source at that colour temperature.
-The colour variation is referred to as the colour temperature and is measured in degrees Kelvin. The scale ranges from the flame of a candle at around 1900K to deep blue sky at around 10,000k as illustrated by this diagram.
The light source is listed next to the degrees in Kelvin, both set against the colour of the light at each level.If you were using film cameras you would have to use colour correction filters to compensate.
Minutiae:
Is where you focus on a certain point.
IE this is where you can get very creative with what you are looking at through the camera lens
For instance if you were in a wood and wanted to get the most out of taking a picture of a tree
You would have to get really close and focus directly on the pattern of the tree, this would make for a very interesting shot.
Focus points:
For this method you can focus on any part of your subject
For instance if you were taking a photograph of a flower, you can select where you want the flower to be in focus
When you focus on that flower you can then move your camera only to the side, this will act as a barrier and
your camera will only measure the focus point from the distance of the said flower.
However, if you moved closer the flower would sadly not be in focus.
Is where you focus on a certain point.
IE this is where you can get very creative with what you are looking at through the camera lens
For instance if you were in a wood and wanted to get the most out of taking a picture of a tree
You would have to get really close and focus directly on the pattern of the tree, this would make for a very interesting shot.
Focus points:
For this method you can focus on any part of your subject
For instance if you were taking a photograph of a flower, you can select where you want the flower to be in focus
When you focus on that flower you can then move your camera only to the side, this will act as a barrier and
your camera will only measure the focus point from the distance of the said flower.
However, if you moved closer the flower would sadly not be in focus.