D-CAMERAS--6

ENgineers were eager to put several features in d-cams and lo...........one camera.............features galore. most and first was the automation. autofocus brings the centre of interest into sharpfocus. further, the WHITE BALANCE adjusts the colours according to the source of light. auto FLASH fires automatically, if the light is low...AUTO ADVANCE prepares the camera for the next photographs.
STorage of images.........................the number of images u can store in a camera depends upon a variety of factors. .....the no. u can store is important, because once u reach the limit, u have no choice but to quit taking of pix and if necessary, erase some of the images to make room for the new.....ALL dcams use some sort of storage system, such as built in MBs, flash memory cards. after the card is full, u can insert another or reduce the resolution and take more pix in low MPs.
TRansfering images to a computer. the memory card holds images upto a particular extent. and to make space again in it, u have to transfer them to your computer thru cable (USB) DIRECT FROM YOUR CAMERA OR ALTERNATIVELY use CARD READER device, in which u insert your flash card/SD/MMC/memory stick cards and download the images into the computer.
VIdeo output................u can use NTSC/PAL to attach your camera to a television to view your images more clearly and also for home/family viewing.

D-CAMERA--5

DIgital refers to the binary representation of data as bits and bytes. basically the binary representation of data is used by computer to create, manage and store information.
Bits and Bytes:a bit is the smallest unit of information that a computer can store and process and there are 8 bits in a byte.............PIXEL..is the smallest addresseable point of bitmapped screen that can be independently assigned colour and intensity................BITMAP is a digital representation of a picture in which all the dots or pixels making of the picture are placed in a square grid and correspond to specifically assigened bits in computer memory..................RESOLUTION..IS THE DEGREE OF SHARPNESS of an image displayed on a computer screen or quality of printed output expressed in dots per inch(dpi). resolution is usually equated with quality. the higher the resolution, the higher the image quality. .................COMPRESSION..is a data storage scheme in which data files are compressed by algorithms to save disk space.......................SOFTWARE DRIVERS..are files that allow your computer to communicate with peripheral devices such as scanner, digital camera, printer and modem.............

D-CAMERAS--4

THe image sensor in d-cams has an impact on the images u shoot. this image sensor is the permanent part of your d-cam. these sensors, like films, render colour differently, have different amounts of grain, different sensitivities to light etc.
RESOLUTION..... this refers to the sharpness and details in an image. thereby the companies are now capable of producing higher resolution cameras like 6 to 10 megapixels. higher the resolution better the pictures and also for purpose of good enlargements.
SENSITIVITY:..........like films the companies have adopted the same type of range for sensitivity of the sensors i.e. ISO. like films lower ISO sensitivity gives better results and if the ISO is increased, the quality suffers and grains (n0ise) appear more prominently. for instance, the ISO ranges from 100 to 3200. ..........and like films lower ISO needs more light than higher. so while shooting, check the ISO according to the density of light i.e. low light will need higher ISO AS OPPOSITE TO LOWER ISO suppose in sunlight.
ONE MORE thing to point out is that higher resolution(more megapixels) reduces the number of images to be recorded by a d-cam. while lower image quality(low resolution--less megapixels)allows u to store more images and that depends upon the necessity of shooting pix.

D-CAMERAS--3

DIgital cameras are are not just cameras but more than that. generally we expect still photographs but using d-cams, u also get video with sound. this is a unique feature in small d-cams...........u can shoot like video. coming in this category, they became more like multimedia recorders than cameras. however, they still retain some features of film cams e.g. shutters and exposurers and lenses besides their own loads of new features, that include replacement of films by solid-state image sensors and they are divided in two categories i.e. CCD and newer CMOS image sensor.
OPerating system: .............the d-cam needs an operating system like the computers and this software works for image compression, file storage, image display and other basic tasks which helps working of the d-cam.......................as the computers need processors to handle their calculations, so required by the d-cams.....in this way your d-cam is half computer in which the processor provide functions like image preview, image capture, compression, filter, storage, transfer snd display...............but one imp thing is that u cannot download the pix taken by another camera which will need its own software...............so for different make of cams, different software are used.........not one software will be used for all d-cams. your-own......mine-own system.
THe IMAGE SENSOR.........it is worth noting that the image sensor is the 'film' in a d-cam and it plays such an imp role as their characteristics have a great impact on the quality of your images.............................

D-CAMERA--2

DIgital camera, as u will know, differ in storage capacity. many operate dependent on computer and have no storage capacity of their own. some have in-camera storage only and others have a combination of in-camera storage supported by removal cards. however, in all cases, the photos can be erased whenever required. photos are saved safely in the camera's memory and will not be deleted until u instruct the camera or software. out of these, many cameras are mfd. to be used on location and do not require to be connected to the computer until u wish to download or transmit pictures. the MCU chip is the essential driver of the camera and monitors all tasks taking place in the camera. during power on, the MCU goes out and finds out that all the major camera components are okay. if any major component is not working, a message appears on the LCD and the camera stops working.
IN autofocus (which are generally) cameras when a person presses and holds down the shutter release button half way, the inbuilt 4-bit MPU takes a light reading and obtains the reading that how long the shutter shd remain open and how much light is necessary. the camera opens for the length of time specified by the 4-bit MPU. and for example, the charged-coupled device (CCD) captures light as red, blue and green pixels. the pixels pass thru many of the components in the camera for white balance and colour. the pixels continue on until they get 4 MB frame board. this board puts all the pixel back together in the form of a digital image.

DIGITAL PHOTOGRAPHY FOR U.

SINCE last 10 yeqrs the photography has come under a great change from its inception. the films have turned into DIGITAL sensor, who took the responsibility of photographing images in place of films.. thus DIGITAL CAMERAS came into being. they are little computers that can photograph pix. they are packed-full of computer memory, microchips,micro-processors and a CCD image sensor chip. this camera contains a charge- coupled device(CCD) on which the image is captured. software inside the camera looks at the image three times - ones each for RED,GREEN,& BLUE then combines and presents the complete RGB picture on the screen. CCD is similar to film in a conventional camera. the CCD is used to capture the digital pictures,and pictures are usually stored in Erasable, Programmable Memory microchips.
DIGITAL CAMERAS HAVE SPEED RATINGS THAT ARE SIMILAR in concept to film speed. some cameras operate at a fixed speed and others offer flexibility in speeds to match changing conditions.

photography

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one of the greatest innovation of our time.................to catch u, your actions in the modern machine..........the DIGITAL CAMERA. every home's only talk, when an event happens, is 'where is the dcam'. how beautiful, no expenditure on film but only one 'memory card' and have thousands of photographs............of any function, travel,marriage, mundan ceremony etc etc and make a movie also.........so u do not need a handicam even, the day to day activities of your tiny one, grannie, grandpa,(THE MOST EFFECTIVE MEMBERS OF YOUR FAMILY), brother,sister and all other relatives..........if u want get the prints from a colour lab or upload to your laptop/compu. to make an ALBUM/ALBUMS of your great memories and view online, whenever u desire & wherever u are.in the world, the memories are with u.and NOW...............................................................................................there are 3 types of dcams there.in the market..........for home, the compact model and for more enthusiast....a prosumer camera and for semi pro/pro...............there is a range of DSLRs to satisfy their thirst of catching images, of home, outside, landscapes, skyscapes, old monuments........and u can do this with all 3 cameras, so u need not to be hopeless. ,,,,,,,,,,,,,,,,,,,,,enjoy the moments of life, ENJOY MODERN PHOTOGRAPHY. ....GOOD LUCK.