Photography - Exposure And Rendering
The elements of photography techniques and camera controls are inter-related. In this article, we will focus on the exposure and rendering in photography. Read on to know more on the subject.
The exposure in photography is the total quantity of light that reaches the film plane. This can change with the time length of exposure, the aperture of the lens, and the effective focal length of the lens. Variable focal length lenses can result a change in aperture as the lens is zoomed. Therefore, a change in any of these elements can change the exposure. Many cameras are able to regulate automatically most or all of these controls, which are particularly useful for occasional photographers in many situations. Read on to know more on photography exposure and rendering.
For cameras that don't have a physical shutter, the duration of an exposure is known as shutter speed, and is characteristically measured in fractions of a second. The aperture is conveyed by an f-number or f-stop. Photography techniques of combining a range of shutter speed, aperture, and film or sensor speed are used for images capturing. Photographs are taken under various conditions of sensor speed, lighting and motion of subjects or camera, and desired depth of field. Different settings of aperture and shutter speed help the photographers to control the exposure and rendering in photography. For instance, a wider aperture is used for inferior light and a lower aperture for extra light.
Moving on with the explana tion of exposure and rendering, image capture is only a small part of the image forming process in photography. Regardless of material, some photography techniques must be employed to render the dormant image captured by the camera into a viewable image. Before the rendering in photography, alterations can be made using several controls. You will find many of these controls comparable to controls used during image capture. But some of these are restricted to the rendering in photography. There are equivalent digital concepts in most printing controls, but some develop different effects. For instance, dodging and burning controls are dissimilar between digital and film processes. With the slide film, the developed film is just put up for projection; the print film needs the developed film negative to be printed onto photographic paper. Also , the digital images can be uploaded directly to an image server, viewed on a television, or transferred to a computer or digital photo frame.
We hope that the exposure and rendering explained in the above article will have expanded your knowledge on photography.