1990: Adobe Photoshop 1.0 released 1992: Kodak introduced Photo CDs 1999: Nikon D1 SLR, 2.74 megapixel for $6000- first ground up DSLR design. 2000: Camera phone introduced in Japan 2003: Compact digital SLRs introduced with Olympus E-1
Photography the art or practice of taking and processing photographs. Camera a device for recording visual images in the form of photographs, film, or video signals. Point and Shoot Camera also called a compact camera, is a still camera designed primarily for simple operation. Most use focus free lenses or autofocus for focusing, automatic systems for setting the exposure options, and have flash units built in. dSLR Camera a digital camera combining the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor, as opposed to photographic film. The reflex design scheme is the primary difference between a DSLR and other digital cameras.
Lens focal length determines the magnification of the image projected onto the image plane, and the aperture the light intensity of that image. For a given photographic system the focal length determines the angle of view, short focal lengths giving a wider field of view than longer focal length lenses Focal Length of a lens is defined as the distance in mm from the optical center of the lens to the focal point, which is located on the sensor or film if the subject (at infinity) is "in focus". The camera lens projects part of the scene onto the film or sensor. Sensor is a device that converts an optical image into an electronic signal. It is used mostly in digital cameras, camera modules and other imaging devices.
Flash/Compact Flash is a device used in photography producing a flash of artificial light (typically 1/1000 to 1/200 of a second) at a color temperature of about 5500 K to help illuminate a scene. A major purpose of a flash is to illuminate a dark scene. LCD View Screen Screen found on digital cameras to view menu options, preview photos and to check camera settings Interchangeable Lenses In dSLR cameras you can change the lens to adjust the sensor size
Aperture The adjustable opening—or f-stop—of a lens determines how much light passes through the lens on its way to the film plane, or nowadays, to the surface of the camera's imaging sensor. “Faster” lenses have wider apertures, which in turn allow for faster shutter speeds. The wider the aperture is set, the shallower the depth of field of the image. Wider apertures allow for selective focus, the ability to isolate your subject from background and foreground within the frame. If you stop the lens aperture down to its smallest openings, you increase the depth of field, or the amount of focus from foreground to background. Generally speaking, most lenses display the highest level of resolving power when set to about three stops down from the widest aperture. ISO Measures the sensitivity of the image sensor. The lower the ISO number, the less sensitive it is to the light, while a higher ISO number increases the sensitivity of your camera.
Shutter Speed exposure time is the length of time a camera's shutter is open when taking a photograph. The amount of light that reaches the film or image sensor is proportional to the exposure time. Fast Shutter Speed vs. Slower Shutter Speed
F stop, ISO and the Shutter speed all work together to generate a photograph, and all equally as important.
The rule of thirds is a "rule of thumb" or guideline which applies to the process of composing visual images such as designs, films, paintings, and photographs. The guideline proposes that an image should be imagined as divided into nine equal parts by two equally spaced horizontal lines and two equally spaced vertical lines, and that important compositional elements should be placed along these lines or their intersections. Proponents of the technique claim that aligning a subject with these points creates more tension, energy and interest in the composition than simply centering the subject.