How many digital camera film camera? What are pixels and why are they important? What is the difference between optical and digital zoom? $100M Dollar Club Why not compare digital cameras, film cameras? These and other questions about digital camera technology have not.
First, a brief historical overview and an overview of digital photography …
Researchers have discovered how to convert videos into electrical signals on magnetic tape storage technology when television started in the early 1950s. In 1970, still images and electronic cameras placed. The solid-state image sensors used in the first generation. Modern digital cameras today, leading technology – 1980-by-megapixel sensors were introduced. Basically, film and digital cameras do the same thing. The photo is stored and retrieved at a later time, the light-sensitive material to take advantage of both the focus of the camera lens. But the way that each camera is completely different.
(CCD) or a complementary metal oxide semiconductor device along with the accused (CMOS) – one of the development and will be printed instead of film, digital measuring light and color cameras, the film did not take advantage of the characteristics of the sensor photodiodes heart. Digital converter (ADC), analog to digital and then a binary code, the signal changes. This code, like the contrast, color photographic elements that adjusts the camera’s memory and file, Compact Flash card, or other memory device is pressed and saves the digital signal processor (DSP) is sent.
When it comes to display and print the images has great advantages of digital cameras. It’s almost immediately! We immediately see the image on the camera LED screen, and if we do not like it, you can delete it and re-shoot. Or download and we will not see it on the computer screen. Images can be cropped or strengthen photo software systems in minutes, photo printer printed. Many digital cameras in addition to all the programs that do not require a computer to the optional printer.
What is a pixel?
The convergence of the human eye can be in the form of high-quality light and color blending said film is almost infinite. Short film elements file – it’s a digital image, the difference is recorded as elements called pixels, which is a binary code. Pixels that when assembled create a mosaic of light and color in small squares. If small squares, like a mosaic, not enough for a smooth, photographic image. Pixels, however, the greatest changes appear jagged or out of focus.
More pixels so when you look at a mosaic with very small elements, such as high-resolution and more detail and vivid, clear images equally. For example, a 3-megapixel digital camera is very good shots, and even vistarikkappatu to about 8 “x 10″ produces. The older you get the crop or manipulate the image, but the image quality and pixel become large and degrading.
Size really matters
The number of pixels of the sensors is important, but so is quality. Some of the largest samples of approximately 1 “across the range of the sensors during which the CCD many compact digital cameras Sensors sensor type and size, and technological advance contradictory scenes. A little finger about the size, but in general we can say that a small CCD inside the photodiodes are probably stronger or an equal number of the sensor will not be as great. The most important considerations for your camera is small and / or be cheaper, you’re assuming that they have the same number of pixels, the larger the sample is likely to be happier with the quality of an image.
Each sizzling created equal
According to the specifications, the camera with a 3x optical digital and 4X to 12X of there. This is not good? This is to tell. Optical zoom works like a telescope, while digital zoom crops the picture. Using these zoom specs with our 3-megapixel camera, for example, what would happen here. 3x optical zoom with image closer and uses all 3 million pixels. But digital zoom crops up to 75% of what you see in the lens and sensor photo currently has about 750,000 pixels, emerge. A 4 “x 6″ print, you will not get the full use of digital zoom, depending on lighting and other conditions.
Future of Digital Photography
The past few years have seen tremendous advances in digital imaging technology. Some advanced digital cameras are now more than 12 million pixels and create medium-format film cameras produce pictures that are in competition. As with all electronic technology, it is reasonable to expect that in the next few years the market has been the best cameras. Photography “purists” Maybe you give up as long as possible, as opposed to their film cameras. And probably sooner rather than later – you comfort, flexibility and quality comparison, it seems inevitable that digital photographers prefer to shoot most of the film.