Photography is all about creativity while capturing the moments, having an idea that makes a good subject to point at, like the way we are seeing at them or they are appearing in such a way which is giving a different meaning to us. But to become a good photographer, along with creativity, we also need to have basic knowledge of how a digital image is created, i.e. technical knowledge & skills. In other words, we need to learn the vocabulary of photographic process as well as to have a thorough understanding of the mechanism of our equipment, which can either be a Compact Point & Shoot Digital Camera or a Digital SLR (Single Lens Reflex) Camera, to capture the right moments at the right time.
In this section, we are going to learn about Sensor, about which I have already mentioned in my previous post, Classic to Digital Photography. When we hold our Digital Camera to shoot an object, it is the Sensor where the lens of our camera focuses the subject and the image is captured initially before being converted to a digital data. It is basically the same function that a
Sensor of digital camera does, just like Film in a roll film camera. In other words, a Sensor is an electrical device which converts light into an electronic signal. The surface of Sensor is covered with photosites (photosites are grid of millions of microscopic light-recording devices) which actually represents the amount of pixels in a captured image. In other words, the number of photosites present in an Sensor represents the number of pixels of a captured image, e.g. when we say that a digital camera is having 16 megapixels in it, it means that the Sensor of that digital camera is having 16 million photosites in it.
As we know that the size of a Sensor plays a very important role in determining the quality of a digital image, i.e. larger the Sensor, higher the Image Quality. The same way, we can say that the size of Sensor also determines the size of individual photosites, e.g. the size of Sensor of a 16 megapixel Compact Point & Shoot Digital Camera is much smaller than size of Sensor of 16 megapixel Digital SLR Camera, which means that the size of individual photosites present in Sensor of 16 megapixel Compact Point & Shoot Digital Camera is also much smaller than the size of individual photosites of 16 megapixel Digital SLR Camera. Even though, both the cameras have 16 megapixels in them as well as 16 million photosites in their Sensor, the size of Sensors determines the size of individual photosites in both the cameras. So the individual photosites in 16 megapixel Compact Point & Shoot Digital Camera is smaller as well as less sensitive to light and is unable to capture very dark & very light areas of a scene accurately, which may result in increased level of noise in the captured image & affects the quality of the image as well. On the other hand, the size of individual photosites in 16 megapixel Digital SLR Camera is bigger because of larger size of Sensor and allows more light to enter that helps to capture very dark & very light areas of a scene accurately and returns high quality digital image.
In today’s world, we see different types of Digital SLR Cameras & they all give good quality images, but still they have differences in terms of image quality. One of the basic reasons behind it is the size of Sensor. There are few advanced Digital SLR Cameras available in the market where we can see Full Frame Sensor, which means the Sensor is having the same size as a frame of 35 mm film and rest of the Digital SLR Cameras have Sensors, which are smaller than a Full Frame Sensor & are of different sizes, hence responsible for the differences in the image quality.
In this section, we are going to learn about Sensor, about which I have already mentioned in my previous post, Classic to Digital Photography. When we hold our Digital Camera to shoot an object, it is the Sensor where the lens of our camera focuses the subject and the image is captured initially before being converted to a digital data. It is basically the same function that a
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Sensor of Digital SLR Camera
(Image courtesy of tor00722
at FreeDigitalPhotos.net) |
As we know that the size of a Sensor plays a very important role in determining the quality of a digital image, i.e. larger the Sensor, higher the Image Quality. The same way, we can say that the size of Sensor also determines the size of individual photosites, e.g. the size of Sensor of a 16 megapixel Compact Point & Shoot Digital Camera is much smaller than size of Sensor of 16 megapixel Digital SLR Camera, which means that the size of individual photosites present in Sensor of 16 megapixel Compact Point & Shoot Digital Camera is also much smaller than the size of individual photosites of 16 megapixel Digital SLR Camera. Even though, both the cameras have 16 megapixels in them as well as 16 million photosites in their Sensor, the size of Sensors determines the size of individual photosites in both the cameras. So the individual photosites in 16 megapixel Compact Point & Shoot Digital Camera is smaller as well as less sensitive to light and is unable to capture very dark & very light areas of a scene accurately, which may result in increased level of noise in the captured image & affects the quality of the image as well. On the other hand, the size of individual photosites in 16 megapixel Digital SLR Camera is bigger because of larger size of Sensor and allows more light to enter that helps to capture very dark & very light areas of a scene accurately and returns high quality digital image.
In today’s world, we see different types of Digital SLR Cameras & they all give good quality images, but still they have differences in terms of image quality. One of the basic reasons behind it is the size of Sensor. There are few advanced Digital SLR Cameras available in the market where we can see Full Frame Sensor, which means the Sensor is having the same size as a frame of 35 mm film and rest of the Digital SLR Cameras have Sensors, which are smaller than a Full Frame Sensor & are of different sizes, hence responsible for the differences in the image quality.
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