Depth of Field traditionally belongs to optics and has been under photography for many years. Depth of Field is the area in which the image captured by the lens is sharp (that is, it is focused), so that in the photograph is, people and objects that are within that area also appear sharp. A more complete and accurate definition of Depth of Field would be: Depth of Field is the space in front and … [Read more...]
Digital Photography
Digital Photography covers all the techniques like Digital Camera like DSLR, Digital Rangefinder to obtain a picture through the use of an electronic sensor as well as processing techniques.
Image sensor of Digital Camera : CMOS and CCD
Image sensor of Digital Camera those are in consumer level usage can be CMOS or CCD. There are some differences inthe technology and performance of Image sensor. An image sensor is a device for recording of two-dimensional images in visible light range. There are also two-dimensional semiconductor detectors for recording high-energy ionizing radiations such as X-ray and gamma radiation. … [Read more...]
Macro Photography : Details on How the Macro World is Captured
Macro Photography or Macro is an area of photography, in which images of objects scales to 1:1 or more. Differences exist between a Macro with a Close Up shot. Normal lenses has a maximum magnification limit ratios ranging from 1:7 to 1:10. With special Lens and diaphragm arrangement, this can be made 1:1 - this is the basic optics behind Macro Photography. Definitions of Macro … [Read more...]
High Dynamic Range (HDR) Image and Photography
High Dynamic Range (HDR) Image and Photography is a digital image that can save the naturally occurring differences in luminance detail. Conventional digital images that are not in a position to be referred to as low dynamic range images or LDR images. High Dynamic Range images can be taken by special cameras, some computer graphics software or from an exposure series reconstructed from LDR … [Read more...]
Megapixels in Digital Camera : Demystifying Image Resolution
Megapixels in Digital Camera is a measurement of resolution of image. The image sensor record brightness levels on a per-pixel unit. A pixel is the homogeneously colored smallest unit of a digital image. 1 megapixel equals to 1 million pixels. Unlike other measures used in computing where the base is usually used for prefixes 1024 rather than 1000, in case of Megapixels it is … [Read more...]
ISO Film speed in Digital Photography
ISO Film speed in Digital Photography is widely used to denote the photographic surface's sensitivity to light and the way it might behave under ideal condition. We have used a kind of legal language to define this ISO Film speed because there are many things behind ISO Film speed in Digital Photography, which you might like to know. How ISO Film speed arrived in the field of … [Read more...]
Scanning Camera and Reprography
Scanning Camera is a digital camera with a line sensor in the field of photography for reprography. Reprography is a method of reproduction technology. Scanning Camera?is actually a combination of an analog camera with a scanner as a unit. So, in case of our conventional digital photography, we are actually using a 2D sensor to capture the image, but in case of a Scanning Camera, the senor is able … [Read more...]
RAW Image Format and Digital Negative
RAW Image Format and Digital Negative are file formats of digital images containing all of the image data that has been captured by the sensor digital camera. RAW Image Format and Digital Negative (DNG) are not the same, but are often used wrongly to indicate the minimally processed image file formats of a Digital Camera. RAW Image Format and Digital Negative Adobe's Open Source … [Read more...]
Image Sensor Format : Image Sensor Size and Field of View
Image Sensor Format for both DSLR and Compact Digital Camera is the Image Sensor Size and determines the Field of View. Statistics shows that over 90% of new Compact Digital Camera buyers has little idea about Image Sensor Format. Previously we have written about Compact Digital Camera, DSLR and Digital Photography itself. If you are a newbie to Digital Photography or just planning to buy a new … [Read more...]
Compact Digital Camera or DSLR : Which one to Buy
Compact Digital Camera or DSLR - very tough question especially right now when some high end Compact Digital Camera gives various features and an entry level DSLR costs less that that model. Whether to buy a Compact Digital Camera or DSLR, this can not be answered by any article online. You have to understand yourself Compact Digital Camera or DSLR, which is the right choice for … [Read more...]
DSLR : Digital single-lens reflex camera details
In an previous article, we wrote about the technical points of a typical Compact Digital Camera in very simple language, in this post we will discuss about Digital single-lens reflex camera or popularly known as DSLR Camera. The technology behind a typical DSLR Basically the technology of DSLR is of Reflex Lens Camera. There are two types of Reflex Lens Camera and Twin Reflex Lens … [Read more...]