Archive for January, 2009
Digital Camera – the Easy Way to Take Pictures
In comparison to film cameras, digital cameras have number of advantages which includes displaying the image on the camera screen right after recording, a single small memory device can record thousands of images, records video with sound, provision to edit images, and above all storage capacity can be re-used by deleting the images. There are numbers of devices available that has in-built digital cameras like mobile phones, PDA`s etc. Specialized digital cameras are fit into astronomical devices like The Hubble Space Telescope.
Digitizing images on scanner and digitizing video signals are much older than making of still images using digital signals from an array of discrete sensor elements. It was then used for astronauts to provide onboard navigation information during their visit to planets. It provided the still photos of stars and planet locations during transit and also additional stadiametric information for orbiting or landing guidance while approaching planet.
Steven Sasson, an engineer at Eastman Kodak, attempted to develop first digital camera with solid state CCD image sensor chips. But it was just a technical exercise. The true digital camera was Fuji DS-1P developed in 1988. And the first commercialized camera was Dycam Model 1 in 1990. Then in 1991, Kodak launched its Kodak DCS 100. Else Casio QV-10 was the first consumer camera in 1995. Nikon D1, a 2.74 megapixel camera was the first digital SLR developed in 1999. And in 2003, Canon 300D, first 600 megapixel camera was launched.
There are various types of digital cameras available. For videos, there are professional video cameras which are used in television and movie production. Camcorders come with inbuilt microphone and a small liquid crystal display to watch video while recording and playback. One can get still photographs also with them. Webcams, attached to computers, can capture full-motion video and are also available with microphones or zooming ability.
In live-preview digital camera, there is an electronic camera that can be used to frame and preview before taking the photograph and also to review stored photographs. Many of such cameras can take motion pictures. Then the recorded images can be transferred to computer, printer or any other such device. USB mass storage device enables the camera to function as disk drive for computer and Picture Transfer Protocol is then used.
To use Firewire, storage device is removed from camera and inserted into other device. Compact digital cameras, small and portable with inbuilt flash, are easy to use, and images are stored using Lossy compression. They might be able to capture motion picture but that to a limit. Bridge or SLR like camera is higher-end-live-preview camera with more advanced features like superzoom lenses, takes movies with sound, etc. Digital rangefinder, a user operated mechanism, is capable to measure subject distance.
Apart from above mentioned digital cameras, there are other categories also. Professional modular digital camera systems are used in studios for commercial production. Line-scan camera systems, based on focusing mechanism, are used in industrial settings to capture images of constantly moving materials. They capture images at extremely fast with high image resolutions.
Most of the digital cameras come with pre-set modes for different applications. Data can be transferred through USB port, Firewire port, USB PTP mode and even through wireless connections like WiFi, Bluetooth etc. These data are mostly stored in Microdrives, Joint Photography Experts Group (JPEG), Tagged Image File Format (TIFF) and RAW. Formats for movies are AVI, DV, MPEG and MOV. Recently MP4 format is also developed. Digital cameras have small but powerful batteries to operate for enough length of time.
By: Roberto Sedycias
About the Author:
Digitizing images on scanner and digitizing video signals are much older than making of still images using digital signals from an array of discrete sensor elements. It was then used for astronauts to provide onboard navigation information during their visit to planets. It provided the still photos of stars and planet locations during transit and also additional stadiametric information for orbiting or landing guidance while approaching planet.
Steven Sasson, an engineer at Eastman Kodak, attempted to develop first digital camera with solid state CCD image sensor chips. But it was just a technical exercise. The true digital camera was Fuji DS-1P developed in 1988. And the first commercialized camera was Dycam Model 1 in 1990. Then in 1991, Kodak launched its Kodak DCS 100. Else Casio QV-10 was the first consumer camera in 1995. Nikon D1, a 2.74 megapixel camera was the first digital SLR developed in 1999. And in 2003, Canon 300D, first 600 megapixel camera was launched.
There are various types of digital cameras available. For videos, there are professional video cameras which are used in television and movie production. Camcorders come with inbuilt microphone and a small liquid crystal display to watch video while recording and playback. One can get still photographs also with them. Webcams, attached to computers, can capture full-motion video and are also available with microphones or zooming ability.
In live-preview digital camera, there is an electronic camera that can be used to frame and preview before taking the photograph and also to review stored photographs. Many of such cameras can take motion pictures. Then the recorded images can be transferred to computer, printer or any other such device. USB mass storage device enables the camera to function as disk drive for computer and Picture Transfer Protocol is then used.
To use Firewire, storage device is removed from camera and inserted into other device. Compact digital cameras, small and portable with inbuilt flash, are easy to use, and images are stored using Lossy compression. They might be able to capture motion picture but that to a limit. Bridge or SLR like camera is higher-end-live-preview camera with more advanced features like superzoom lenses, takes movies with sound, etc. Digital rangefinder, a user operated mechanism, is capable to measure subject distance.
Apart from above mentioned digital cameras, there are other categories also. Professional modular digital camera systems are used in studios for commercial production. Line-scan camera systems, based on focusing mechanism, are used in industrial settings to capture images of constantly moving materials. They capture images at extremely fast with high image resolutions.
Most of the digital cameras come with pre-set modes for different applications. Data can be transferred through USB port, Firewire port, USB PTP mode and even through wireless connections like WiFi, Bluetooth etc. These data are mostly stored in Microdrives, Joint Photography Experts Group (JPEG), Tagged Image File Format (TIFF) and RAW. Formats for movies are AVI, DV, MPEG and MOV. Recently MP4 format is also developed. Digital cameras have small but powerful batteries to operate for enough length of time.
By: Roberto Sedycias
About the Author:
This article can be accessed in portuguese from the Article section of page www.polomercantil.com.br/camera-digital.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br
Posted in Digital Cameras | 
Tags: Astronomical Devices, Ccd Image Sensor, Eastman Kodak, Specialized Digital | 
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What You Should Know Before Buying A Digital Camera
Digital cameras are a vast improvement over the regular cameras. Electronic sensors are used in digital cameras to store pictures on a memory card. These pictures can be uploaded to a computer by an USB cable. Some digital cameras can record sound and video also.
It is imperative to study the different types of digital cameras, their features and identify our objective before buying a digital camera.
Types of digital cameras:
Compact digital camera – These are `snapshot` cameras invariably small and compact in size. They lack sophisticated hardware. Images are stored in JPEG format. Compact digital cameras have a sharp focus and a built-in flash.
Bridge camera – These cameras form a `bridge` between the compact digital camera and the DSLR camera. They have small sensors but large zoom ranges. Bridge cameras have an LCD electronic screen which can take a live preview of the photo before clicking it. Bridge cameras employ either electronic viewfinders (EVF) or optical viewfinders (OVF). The quality of these viewfinders is undergoing sea improvement regarding their size, resolution, visibility, magnification and refresh rate.
Digital single-lens reflex camera – An automatic mirror system is used which displays the exact image. The absence of time lag in the image is a great advantage for taking photos where the subject is constantly on the move. There is an auto focus system and furthermore, the resolution is extremely good. The only disadvantage is the absence of a `live preview` in most DSLR cameras.
Digital rangefinder camera – This is a portable camera suitable for theatre photography, portrait photography, street photography and candid shots. A rangefinder is a range finding focusing accessory attached to a digital camera allowing a sharp focus. Wide-angle lenses are more often used in rangefinders. Filters which absorb much light or change the color of the image can be used in this camera.
Main features:
Resolution – About 2 – 3 mega pixel resolution is enough for a decent digital camera. Resolution is a measure of the number of pixels on the sensor that create the picture. It is an important factor for printing a larger image or cropping it. Usually, the higher the resolution, greater the cost.
Type of lens – A glass lens gives a better quality picture than a plastic one. Again, a zoom lens adds greater versatility.
Close-up mode – Many digital cameras have a special close-up mode which allows one to take close-ups of extremely small objects like jewelry and coins.
Manual mode – Modes of different types are there, which enhance the quality of photographs in a particular situation. Portrait, landscape and close-up are the special exposure modes. Shutter speed and lens opening can be maneuvered in the manual exposure mode. Burst mode allows a number of pictures to be taken in rapid succession. Different filters can be used to provide beautiful effects. Extra flash modes can also enhance the clarity of the picture.
ISO – This value normally varies between 100 and 400. A higher value indicates that more number of pictures can be taken in dim light.
Conclusion:
After going through the different types of digital cameras and their features, one should ask oneself about the objective of buying a digital camera. The type of photography, the experience level, weather conditions, the budget and portability are all factors which need to be taken into account before purchasing a digital camera.
A higher mega pixel rating means a higher price. If large prints are not the criteria, then mega pixel rating around 4 should suffice. Lastly, reading reviews of the different digital cameras available for sale might just be the best option before purchasing an actual one.
By: Roberto Sedycias
About the Author:
It is imperative to study the different types of digital cameras, their features and identify our objective before buying a digital camera.
Types of digital cameras:
Compact digital camera – These are `snapshot` cameras invariably small and compact in size. They lack sophisticated hardware. Images are stored in JPEG format. Compact digital cameras have a sharp focus and a built-in flash.
Bridge camera – These cameras form a `bridge` between the compact digital camera and the DSLR camera. They have small sensors but large zoom ranges. Bridge cameras have an LCD electronic screen which can take a live preview of the photo before clicking it. Bridge cameras employ either electronic viewfinders (EVF) or optical viewfinders (OVF). The quality of these viewfinders is undergoing sea improvement regarding their size, resolution, visibility, magnification and refresh rate.
Digital single-lens reflex camera – An automatic mirror system is used which displays the exact image. The absence of time lag in the image is a great advantage for taking photos where the subject is constantly on the move. There is an auto focus system and furthermore, the resolution is extremely good. The only disadvantage is the absence of a `live preview` in most DSLR cameras.
Digital rangefinder camera – This is a portable camera suitable for theatre photography, portrait photography, street photography and candid shots. A rangefinder is a range finding focusing accessory attached to a digital camera allowing a sharp focus. Wide-angle lenses are more often used in rangefinders. Filters which absorb much light or change the color of the image can be used in this camera.
Main features:
Resolution – About 2 – 3 mega pixel resolution is enough for a decent digital camera. Resolution is a measure of the number of pixels on the sensor that create the picture. It is an important factor for printing a larger image or cropping it. Usually, the higher the resolution, greater the cost.
Type of lens – A glass lens gives a better quality picture than a plastic one. Again, a zoom lens adds greater versatility.
Close-up mode – Many digital cameras have a special close-up mode which allows one to take close-ups of extremely small objects like jewelry and coins.
Manual mode – Modes of different types are there, which enhance the quality of photographs in a particular situation. Portrait, landscape and close-up are the special exposure modes. Shutter speed and lens opening can be maneuvered in the manual exposure mode. Burst mode allows a number of pictures to be taken in rapid succession. Different filters can be used to provide beautiful effects. Extra flash modes can also enhance the clarity of the picture.
ISO – This value normally varies between 100 and 400. A higher value indicates that more number of pictures can be taken in dim light.
Conclusion:
After going through the different types of digital cameras and their features, one should ask oneself about the objective of buying a digital camera. The type of photography, the experience level, weather conditions, the budget and portability are all factors which need to be taken into account before purchasing a digital camera.
A higher mega pixel rating means a higher price. If large prints are not the criteria, then mega pixel rating around 4 should suffice. Lastly, reading reviews of the different digital cameras available for sale might just be the best option before purchasing an actual one.
By: Roberto Sedycias
About the Author:
You can have access to portuguese articles about digital cameras from page Digital_Camera Roberto Sedycias works as IT consultant for www.polomercantil.com.br
Posted in Digital Cameras |
Tags: Buying A Digital Camera, Compact Digital Camera, Electronic Sensors, Lens Reflex |
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With the Canon Digital Camera Range the World Can be at your Fingertips
The different variety of cameras that are in use these days, range from the normal manual camera, to the automatic camera, to the digital camera. And the best place to find all of these is in the range of Canon digital camera models which are available on the market today..
Canon is constantly updating its products and you have a wide range of styles and features available when you go in for a Canon digital camera. These features can be found in many different digital cameras like that of the Canon Digital SD550, the Canon Digital PowerShot S2, and others of its ilk.
The features to be found on the different canon digital cameras can range from a larger than average LCD display, to stereo sound recording, to low image noise resolution and others. To see what the various features are for the different camera models you might have to compare them as you shop around.
For instance you will find that the Canon digital camera PowerShot S2 has a 5 Megapixel CCD, and a new Night Display which allows your LCD and EVH to become brighter in low light. You will also find movie options in this Canon digital camera like mic level, and a wind filter which can’t be found in earlier models.
With the Canon digital camera SD500 features like a continuous shooting mode can be found, as well as a redeye reduction option which has been designed into the camera via a built-in illuminator. This Canon digital camera also has a 1.8 low temperature LCD, a Flash Exposure Lock function to help you in your photography.
Some of the features to be found in these more expensive Canon digital cameras can also be found in the less expensive digital compact cameras. This diversity in features and models is also reflected in the price of the many Canon Digital cameras as they can start from about $100 and go upwards.
The actual price of the cameras should be looked into at the time you are thinking of buying your camera, as the prices will be subject to fluctuation and advances in technology.
When you’re looking at the range of Canon digital cameras besides finding out what are the various functions and features you might also want to find out what accessories are part of the camera, and which ones you’ll have to buy separately.
These accessories for the Canon digital cameras include things like a telephoto lens, a wide angle lens, a battery charger or kit, an A/C power adaptor, external flash, and a carrying case amongst other things.
As you can see from the number of options available to you, buying a camera isn’t what it used to be fifty years ago, there are a number of things that you will want to look into first before buying your camera. But with the Canon digital camera range the world can be at your fingertips as you can choose the perfect camera to suit you.
By: Muna wa Wanjiru
About the Author:
Canon is constantly updating its products and you have a wide range of styles and features available when you go in for a Canon digital camera. These features can be found in many different digital cameras like that of the Canon Digital SD550, the Canon Digital PowerShot S2, and others of its ilk.
The features to be found on the different canon digital cameras can range from a larger than average LCD display, to stereo sound recording, to low image noise resolution and others. To see what the various features are for the different camera models you might have to compare them as you shop around.
For instance you will find that the Canon digital camera PowerShot S2 has a 5 Megapixel CCD, and a new Night Display which allows your LCD and EVH to become brighter in low light. You will also find movie options in this Canon digital camera like mic level, and a wind filter which can’t be found in earlier models.
With the Canon digital camera SD500 features like a continuous shooting mode can be found, as well as a redeye reduction option which has been designed into the camera via a built-in illuminator. This Canon digital camera also has a 1.8 low temperature LCD, a Flash Exposure Lock function to help you in your photography.
Some of the features to be found in these more expensive Canon digital cameras can also be found in the less expensive digital compact cameras. This diversity in features and models is also reflected in the price of the many Canon Digital cameras as they can start from about $100 and go upwards.
The actual price of the cameras should be looked into at the time you are thinking of buying your camera, as the prices will be subject to fluctuation and advances in technology.
When you’re looking at the range of Canon digital cameras besides finding out what are the various functions and features you might also want to find out what accessories are part of the camera, and which ones you’ll have to buy separately.
These accessories for the Canon digital cameras include things like a telephoto lens, a wide angle lens, a battery charger or kit, an A/C power adaptor, external flash, and a carrying case amongst other things.
As you can see from the number of options available to you, buying a camera isn’t what it used to be fifty years ago, there are a number of things that you will want to look into first before buying your camera. But with the Canon digital camera range the world can be at your fingertips as you can choose the perfect camera to suit you.
By: Muna wa Wanjiru
About the Author:
Muna wa Wanjiru is a web administrator and has been researching and reporting on internet marketing for years. For more information on Canon digital camera, visit his site at CANON DIGITAL CAMERA
Posted in Digital Cameras |
Tags: Digital Compact Cameras, Evh, Flash Exposure, Manual Camera |
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Find a Nice Digital Camera
Where are you going today? Are you going alone or together with your friends or family? Don’t forget to bring your camera. Don’t leave home without your camera. A lot of unique thing happen in the street. You can capture anything with your camera.
What is your camera? Do you still have your grandfather’s camera? Many people still use SLR (single lens reflection) cameras. A SLR camera is great because you can create photography art. A professional photographer will use both digital and analog camera.
If you go to the city and enter the camera shops, there are not many conventional cameras available now. Most people are preferred to use a compact digital camera. A digital camera is slim, full with features and easy to use. You don’t have to bring a big size camera and film wherever you want to take some pictures.
When you need to buy a digital camera you must think about the price, brand, features, picture quality, mega pixel, services and guarantee, etc. You can choose many brands such as Kodak, Canon, Pentax, Panasonic Lumix, Leica, Casio, Nikon, Sanyo, Samsung, Sony, and other brand. A digital camera starts from 1.3 mega pixels and above 10 mega pixels. You can get a good quality picture from 4 or more mega pixel resolutions. Don’t buy a digital camera below the 4 mega pixels because the picture quality is not so good when you print your photo. Recently, Canon PowerShot, Casio Exilim, Sony Cyber-shot, Panasonic Lumix and other Chinese brand Mikona camera promote 12.1 Megapixel digital cameras. Wow…
The latest digital camera also equipped with face detection technology, high sensitive ISO, anti shake, anti blur, auto focus, internal editing, and other high tech features. Also you can connect your digital camera to view full HDTV 1080p for better images. You don’t have to buy a separate video camera if you are a traveler because a compact size digital camera also equipped with a capability to make a movie. It’s incredible.
Before you make a decision please consider the feature of the camera. Don’t forget to check the brochure and browse the information in the Internet. Make sure that the lenses size, zoom, and flash light, battery life, etc. fits your needs. Ask the shop owner about bonus if you choose a particular brand. Sometime they give some bonuses such as external memory or soft case. Most digital camera also include video capture capability, but make sure that you can make a video or movie with sound or audio. Video without audio is not complete. It’s a great idea if you purchase a digital camera in a promotion season. Digital cameras are now available for both professional photographers and amateur enthusiasts. A professional digital camera is expensive and the size it’s bigger than the compact size digital camera.
K Setiabudi
http://success-digitalview.blogspot.com/
By: Komang Setiabudi
About the Author:
What is your camera? Do you still have your grandfather’s camera? Many people still use SLR (single lens reflection) cameras. A SLR camera is great because you can create photography art. A professional photographer will use both digital and analog camera.
If you go to the city and enter the camera shops, there are not many conventional cameras available now. Most people are preferred to use a compact digital camera. A digital camera is slim, full with features and easy to use. You don’t have to bring a big size camera and film wherever you want to take some pictures.
When you need to buy a digital camera you must think about the price, brand, features, picture quality, mega pixel, services and guarantee, etc. You can choose many brands such as Kodak, Canon, Pentax, Panasonic Lumix, Leica, Casio, Nikon, Sanyo, Samsung, Sony, and other brand. A digital camera starts from 1.3 mega pixels and above 10 mega pixels. You can get a good quality picture from 4 or more mega pixel resolutions. Don’t buy a digital camera below the 4 mega pixels because the picture quality is not so good when you print your photo. Recently, Canon PowerShot, Casio Exilim, Sony Cyber-shot, Panasonic Lumix and other Chinese brand Mikona camera promote 12.1 Megapixel digital cameras. Wow…
The latest digital camera also equipped with face detection technology, high sensitive ISO, anti shake, anti blur, auto focus, internal editing, and other high tech features. Also you can connect your digital camera to view full HDTV 1080p for better images. You don’t have to buy a separate video camera if you are a traveler because a compact size digital camera also equipped with a capability to make a movie. It’s incredible.
Before you make a decision please consider the feature of the camera. Don’t forget to check the brochure and browse the information in the Internet. Make sure that the lenses size, zoom, and flash light, battery life, etc. fits your needs. Ask the shop owner about bonus if you choose a particular brand. Sometime they give some bonuses such as external memory or soft case. Most digital camera also include video capture capability, but make sure that you can make a video or movie with sound or audio. Video without audio is not complete. It’s a great idea if you purchase a digital camera in a promotion season. Digital cameras are now available for both professional photographers and amateur enthusiasts. A professional digital camera is expensive and the size it’s bigger than the compact size digital camera.
K Setiabudi
http://success-digitalview.blogspot.com/
By: Komang Setiabudi
About the Author:
Insurance agent.
Hobby Photography.
K Setiabudi
http://holidayinparadise.blogspot.com/
Posted in Digital Cameras |
Tags: Brand Features, Casio Exilim, Digital Cameras, Professional Photographer |
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Affordable Digital Cameras
Many of us look for digital cameras that can perform the tasks that we need while being priced at reasonable rates. The various digital cameras can be found in the high end market to the mid range and also affordable digital cameras. When you are looking for the affordable digital cameras that you need for your photographs you will find many different types of cheap digital cameras that you can buy.
These different affordable digital cameras can be bought from a variety of camera stores. The price range from some of these cameras can start at about $30 and go as high as $500. The various cameras that can you find in this cheap digital camera market also have well known brands like Nikon, Minolta, JVC, Kodak and Fuji.
While these affordable digital cameras will lack some of the features that can be found in the high end digital cameras they can deliver good photographs. You will need to look at these cheaper digital cameras to see if they have the various items that you require.
These features can be the various shooting modes that you will get from your digital camera. Underwater, foliage, indoor, portrait, automatic are just a few of the shooting modes that you can look for when you are selecting your affordable digital camera. Some cheap digital cameras will feature interesting effects like that of panorama stitching.
This facility allows you to take three different photographs. You can them merge these distinct photographs together to create a fantastic picture. The amount of megapixels may not be that important for everyone but they do allow you to receive sharp and well defined pictures.
Since this is important for accurate and detailed photographs you should look for this information as you are going through the various types of affordable digital cameras that are available. You can use various photography magazines and digital camera buyer’s guides to help you select the type of digital camera that is within your budget.
Since there are many different models of affordable digital cameras you will need to know the various features and requirements that you need for taking a picture. Once you know these parameters you can start your hunt for the right type of digital camera. With so many different brands and models of digital cameras on the market you are sure to find your ideal and affordable digital camera.
By: mike legg
About the Author:
These different affordable digital cameras can be bought from a variety of camera stores. The price range from some of these cameras can start at about $30 and go as high as $500. The various cameras that can you find in this cheap digital camera market also have well known brands like Nikon, Minolta, JVC, Kodak and Fuji.
While these affordable digital cameras will lack some of the features that can be found in the high end digital cameras they can deliver good photographs. You will need to look at these cheaper digital cameras to see if they have the various items that you require.
These features can be the various shooting modes that you will get from your digital camera. Underwater, foliage, indoor, portrait, automatic are just a few of the shooting modes that you can look for when you are selecting your affordable digital camera. Some cheap digital cameras will feature interesting effects like that of panorama stitching.
This facility allows you to take three different photographs. You can them merge these distinct photographs together to create a fantastic picture. The amount of megapixels may not be that important for everyone but they do allow you to receive sharp and well defined pictures.
Since this is important for accurate and detailed photographs you should look for this information as you are going through the various types of affordable digital cameras that are available. You can use various photography magazines and digital camera buyer’s guides to help you select the type of digital camera that is within your budget.
Since there are many different models of affordable digital cameras you will need to know the various features and requirements that you need for taking a picture. Once you know these parameters you can start your hunt for the right type of digital camera. With so many different brands and models of digital cameras on the market you are sure to find your ideal and affordable digital camera.
By: mike legg
About the Author:
Click here for great beginning photography tips
http://www.buytryreview.com/recommends/photomastery
Posted in Digital Cameras |
Tags: Foliage, Fuji Cameras, Fuji Digital, High End Digital Cameras |
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