From Analogue to digital
Analogue cameras have changed to digital camera through a number of ways with some areas becoming fully automatic whereas others staying very similar, the main ones include:
Shutter:
In analogue cameras, the shutter is a little flipper on a camera keeps light from going inside the camera unless the photographer wants to. If not enough light is let in the photo will be dark, if too much light is let in the photo will be faint. This has changed since in digital cameras, some don't use shutters, however when their is a shutter their is a connection using digital technology with a automatic shutter which usually leads to high quality photos
Aperture (the space where light passes into the camera):
In analogue cameras, the aperture of a camera works by adjusting the settings to the overall level of light. A thinner aperture lets in fewer amounts of light so that the film is not faint. This has changed in digital cameras due to there being an automatic opening to adjust the light.
Lens:
In analogue cmaeras the lens takes the light that goes into the camera and focusses it on the film, when you adjust the focus of the camera, you are moving the lens. This has changed little in digital cameras as you can change the focus on the lens as you can on an analogue camera.
Film speed:
A film's speed is a way of of saying how sensitive it is to light. If a film is more sensitive (or faster) , the faster it will react when light touches the film. This has changed in digital cameras as they have an image senor with one level of sensitivity to light. The camera's built-in computer can improve images by getting rid of the blur and so raising (or lowering) the light that is taken in the image sensor.
Recording light:
In analogue cameras, the film is coated in a layer of emulsion (a thin layer of oils) that will change crystals chemically when the light hits the film and so when the developing and printing processes are changing this to a picture, the dyes in the different emulsion layers that react to each primary color and the dyes then mix to the actual color of the light that hit the film. This has changed due to digital camera's as they image sensors that is made up of tiny little photosites (which are light sensitive elements) that turn light into a digital picture through the computer giving a certain color to each pixel.
Creating an image:
In analogue cameras, the film is bathed in chemicals (as we have discussed earlier), in which the film is developed and 'fixed' creating a negative, then to print a bright light is flashed through the film onto the photographic paper, which is again covered in a similar emulsion as the film. The negative image then becomes positive creating the photograph. In a digital camera, the steps are much simpler, the digital camera records the light electrically and this 'information' becomes an image through thousands of pixels that are mixed together; this can then be downloaded.
Shutter:
In analogue cameras, the shutter is a little flipper on a camera keeps light from going inside the camera unless the photographer wants to. If not enough light is let in the photo will be dark, if too much light is let in the photo will be faint. This has changed since in digital cameras, some don't use shutters, however when their is a shutter their is a connection using digital technology with a automatic shutter which usually leads to high quality photos
Aperture (the space where light passes into the camera):
In analogue cameras, the aperture of a camera works by adjusting the settings to the overall level of light. A thinner aperture lets in fewer amounts of light so that the film is not faint. This has changed in digital cameras due to there being an automatic opening to adjust the light.
Lens:
In analogue cmaeras the lens takes the light that goes into the camera and focusses it on the film, when you adjust the focus of the camera, you are moving the lens. This has changed little in digital cameras as you can change the focus on the lens as you can on an analogue camera.
Film speed:
A film's speed is a way of of saying how sensitive it is to light. If a film is more sensitive (or faster) , the faster it will react when light touches the film. This has changed in digital cameras as they have an image senor with one level of sensitivity to light. The camera's built-in computer can improve images by getting rid of the blur and so raising (or lowering) the light that is taken in the image sensor.
Recording light:
In analogue cameras, the film is coated in a layer of emulsion (a thin layer of oils) that will change crystals chemically when the light hits the film and so when the developing and printing processes are changing this to a picture, the dyes in the different emulsion layers that react to each primary color and the dyes then mix to the actual color of the light that hit the film. This has changed due to digital camera's as they image sensors that is made up of tiny little photosites (which are light sensitive elements) that turn light into a digital picture through the computer giving a certain color to each pixel.
Creating an image:
In analogue cameras, the film is bathed in chemicals (as we have discussed earlier), in which the film is developed and 'fixed' creating a negative, then to print a bright light is flashed through the film onto the photographic paper, which is again covered in a similar emulsion as the film. The negative image then becomes positive creating the photograph. In a digital camera, the steps are much simpler, the digital camera records the light electrically and this 'information' becomes an image through thousands of pixels that are mixed together; this can then be downloaded.