Wide Angle Lens: emphasizes objects that are near. Allows for more of a scene to be shown... good for landscape.
A lens having a large angle of view and short focal length. It is good for scenes and groups of people.
Telephoto Lens: a lens that works like a telescope. A larger image results on the film. A lens constructed so as to produce a relatively large image with a focal length shorter than that required by an ordinary lens producing an image of the same size. Good for portrait shots.
-Lenses for 35mm cameras are focused by turning the lens' focusing ring. This moves the glass elements of the lens to correctly focus the light for various subject distances. The lens controls how much light enters the camera. It does so by means of an opening called an aperture, diaphragm, or f/stop.
Refraction: The bending of a light ray passing from one medium to another. Air to glass is an example.
A lens having a large angle of view and short focal length. It is good for scenes and groups of people.
Telephoto Lens: a lens that works like a telescope. A larger image results on the film. A lens constructed so as to produce a relatively large image with a focal length shorter than that required by an ordinary lens producing an image of the same size. Good for portrait shots.
-Lenses for 35mm cameras are focused by turning the lens' focusing ring. This moves the glass elements of the lens to correctly focus the light for various subject distances. The lens controls how much light enters the camera. It does so by means of an opening called an aperture, diaphragm, or f/stop.
Refraction: The bending of a light ray passing from one medium to another. Air to glass is an example.
Stopping down: reducing the lens aperture.
TTL Metering: Through the lens metering. An exposure meter built into the camera which measures reflected light from the subject passing through the camera lens.
Angle of View: The largest angle of light rays passing through the lens that will form an image of acceptable quality on the film.
Normal Lens: A lens that produces an image approximately equal to the size and angle seen by the eye.
Parallax: The difference in images seen by the camera's viewing system and the lens. It is a problem only at close distances.
Zoom lens: A lens with multiple focal lengths. Focusing remains unchanged while altering the focal length.
TTL Metering: Through the lens metering. An exposure meter built into the camera which measures reflected light from the subject passing through the camera lens.
Angle of View: The largest angle of light rays passing through the lens that will form an image of acceptable quality on the film.
Normal Lens: A lens that produces an image approximately equal to the size and angle seen by the eye.
Parallax: The difference in images seen by the camera's viewing system and the lens. It is a problem only at close distances.
Zoom lens: A lens with multiple focal lengths. Focusing remains unchanged while altering the focal length.