many times when taking a picture, you start to think about what everything that happens from the moment you turn your camera until Once the image on the little screen that is in the camera (in the best versions).
Remember, do not many years when you had your normal camera going to the store and buy your roll, wouldst your photos you took off the roll into the center of the expected one hour revealed that through some papers and exhibits chemical light will reveal your photos and take home.
Well now technology offers much more things like save all that time to go shopping every q runs a roll now digital cameras can take a lot more pictures (depending on memory capacity and quality with you want the photos) and also no longer have to go downtown revealing that some cameras come with their own printer so you can get the photos you want without leaving house (only to buy ink for your printer).
To start when the camera is expected q a moment to fully charge the flash (ie if the light that is being exposed is very thin) and by means of sensors that have the camera can be set automatically or manually (it depends on the user). The camera has a built-in flash pop-up, which is activated by the shutter button on the side of the camera, which also serves to offset the exposure of flash (the flash is only useful for taking pictures up to three meters distance from the object to be photographed).
The flash is composed basically by two things: the torch and the generator.
The This torch is a tube filled with xenon gas, the tube is able to generate white light in addition to producing little heat and has a long useful life.
capacitor are all electronic and electronic circuits that feed power to the torch, these circuits have the ability to accumulate all their power and release a single stroke.
Upon activating the download button cough shot his energy in an instant the torch and the light makes
give a very strong flash When pressing the shutter button opens the camera lens which allows light to an electronic photosensor (light sensors CCD, CMD or CMOS) integrated this small is to replace the rolls or traditional film cameras,
l photosensor is an area-type CCD is an array grid of hundreds of thousands of microscopic light-sensitive cells (photodiodes sensitive to light). Each photodiode corresponds to a pixel, so that the more photosensors having the CCD, the more quality we get to know now referred to digital cameras with the term pixel is q and if you want a higher quality picture must have more pixels equals more photodiodes have (but this can raise the price considerably)
Well as long as the exposure time, the light passing through certain games
has the camera lens is aimed at CCD photosensors, but these are covered by certain filters, green, red and blue. These filters only allow light of the basic colors. For example, the blue filter let pass only blue light and not the green and red light. light passing through filters blind converted to electrical charges are amplified and sent to an analog / digital converter, which transforms them into binary information of color (Zeros and ones) that relates to each of the digital image pixels. After this is sent to the camera's internal memory. When the digital camera
end the manipulation of data and get the image in bitmap (pixels), they are stored as a digital file on a memory card.
digital cameras have a small LCD monitor
or LCD, which is in the back of the camera. This kind of monitor offers many features such as viewing the menu on the camera and immediately see the picture you just took this photo is taken from the camera's internal memory. The main task is to monitor replace the optical viewfinder famous contained traditional cameras and digital also a disadvantage q gives us this screen is that much energy is q so many cameras have the option to temporarily turn off the screen when not in use. Finally is downloading to a computer (PC) or print photos directly this is achieved through two ways the first is through a USB cable that connects to the camera or printer and through s software automatically detected and downloaded or printed as appropriate, the second way to download or print the photos is via an external memory that is inserted into the slot (special) on your computer or printer through software downloaded or printed again agree with the case.
optical zoom, the lens is adjusted forward and backward like a film camera. The optical zoom does not reduce the digital photo quality.
Digital Zoom: As you approach the subject uses a smaller part of the digital sensor to record the digital picture. As a result, reduces the number of pixels in the picture.
NOTE: Digital cameras have not yet managed to reach the quality of conventional cameras. REFERENCES
http://www.hugorodriguez.com/cursos/curso-flash00.htm
http://www.desarrolloweb.com/articulos/1865.php
http://ciberhabitat.gob.mx/medios/camaras/funcionamiento.htm
http://www.fotografiapractica.com / cdigital.php
http://www.digitalfotored.com/imagendigital/camaradigital.htm
Author:
Saul Linares Palace
0 comments:
Post a Comment