2. Aperture is able to limit the amount of light passing through the lens and hitting the camera sensor. And it affects light and depth of field.
3. ISO is shot name for the International Organisation for Standardization. ISO has carried over from film. It has 100,200,400,800, and 1600. Higher number is more sensitive to light. The numbers refer to it's rating.
4. Shutter speed is how much fast in one second. If the shutter speed is slow, the photo will be blur. It shows up your handshaking also. It's hard to focus on slow shutter speed.
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6. I can control depth of Field(DOF) by aperture. It makes as much of the scene as sharp as possible.7. In Aperture Priority Mode I as the photographer sets the aperture that I wish to use and the camera makes a decision about what shutter speed is appropriate in the conditions that I am shooting in.
In Shutter Priority Mode I as the photographer choose the shutter speed that I wish to shoot at and let the camera make a decision about what aperture to select to give a well exposed shot.
8.Tonal values are what make a painting 'talk' not the color.
9. A histogram is a graphical representation showing a visual impression of the distribution of data.
10.Natural - The most flattering form of lighting, perhaps because this is the way we see most things and most people everyday.
Diffused light - comes from a relatively large light source, such as window light or light reflecting off of a wall. Diffused light creates soft edges between shadows and highlights. It softens textures, lines, and contours.
Direct Light - Lighting provided from a source without reflection from other surfaces.
Existing light - is difficult to define because it encompasses so much and because its definition is arbitrary. Technically, it covers all natural lighting-from moonlight to bright sunshine. However, for photography, we limit the definition to illumination that exists naturally in the scene.
Artificial light - is any lighting that is not sunlight. Different light sources have a different color temperature which can be compensated for with special filters or simulated with special lighting. A flash simulates the light of the sun for a fraction of a second.
Key light - is the first and usually most important light that a photographer, cinematographer, lighting cameraman, or other scene composer will use in a lighting setup. The purpose of the key light is to highlight the form and dimension of the subject.
Flash light - this light is using for natural photograph.
11.Crop tool, Brush tool, Selection tools, Layers, Levels tool, and Processor or Export tool.
12.Choosing the right tool for the right job, or Selecting with the rectangular marquee tool.
13. Adjustment Layers are extremely important in Photoshop, and understanding what they are, how they work, when to use them and why to use them, will give you the power and knowledge to create amazing things.
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15. I think Photography is important nowadays, because it last so long time. People also remind their memories through the photographs.
