Is Digital Photography Expensive?

Being such a fascinating device as the digital camera, this technological masterpiece is of course a precious and priced possession. And acquiring it also means that one time achievement feeling. Thus a person must also be very careful and at the time quite a little knowledgeable in order to make a good purchase and not lose a good bargain in the maze of soaring prices and mist of exaggerated cost myths. This discussion is again focused to pierce that mist and unravel that myth to reveal the truths and facts regarding the actual and economic cost of a digital camera!

As per recent marketing trends, the conventions has it that there are only two types of digital camera users, firstly the average people who only craves to push the button, and secondly the professional photographers, people who looks for good control over the digital camera and its well carved features and are willing to pay virtually any price. Thus with this idea in the back of the entire process of sell and purchase, diverse levels of resolution for such digital cameras are available that are the real culprits in defining the price range of the cameras. United with such singular features the digital cameras come in a spectral variety of price range for an even varying customer range that are willing to pay anything from £30 to £1,500. The cost of an average digital camera probably lies in the region of £260, however in spite of this a person must be aware of what functionality or resolution that he or she is looking for and ultimate paying for, so that the purchase does not result in too much in exchange of too little of whatever must be desired from the digital camera. A person must self analyze the reasons for purchasing the digital camera before venturing into an expensive rendezvous. He or she must be aware of what the real purpose is, is it only snapping for casual reasons or a serious plan to produce super quality photographs to be printed as art or for professional purposes.

Looking into the price index in a little more detail reveals more facts! SLR (single-lens reflex) digital cameras have attained quite a price shedding with the invention and market release of digital cameras like Canon's EOS Digital Rebel, an SLR priced below $1000, perhaps the very first of its kind. Even with certain add on into the digital camera that even add to the price a bit more, still the Rebel cost remains about $600 below its flanking competitors. However comvention has it that these standard digital cameras cost around $2500 to $4,000.

In an effort to find out the reasons behind such soaring high prices, research reveals that digital camera sensors are, for all intents and purposes, computer chips. The bigger the computer chip, the more likely it is for errors. The reason remains that a single blemish in the silicon wafer may reduce to rubble an entire chip. Thus the random flaw increases with the size of the wafer. This is the exact reason why costly chips like Intel Pentiums processors are basically not bigger than 20mm square and can be also manufactured in greater volumes. Yet with the reduction in size the prices soar up and this proves the high costs of the digital cameras.

Thus it becomes clear from this discussion that a predetermined mind set is required when approaching for purchasing a device like the digital camera. This discussion provides an overview of the price ranges of good digital cameras, but a person must identify his or her own needs and preferences and have an open mind but with some notion of what a good but should be, and the cost of the digital camera would be a guaranteed perfection!

By Jakob Jelling

http://www.snapjunky.com

About The Author

Jakob Jelling is the founder of http://www.snapjunky.com. Visit his digital camera guide and learn how to take better pictures with your digicam.

Digital Zoom Versus Optical Zoom

The digital camera is but a technological advancement of the conventional analog camera. And thus every component of the analog camera must have been upgraded or changed to bring in some improvisations. This discussion is an effort to unravel alteration and make one comparison between what was and what is! This discussion is thereby focused upon a very critical component of a camera (analog as well as digital), the zoom!

Before making a comparison it is important to discuss the significance of the subject matter, in this case the zoom. Well a zoom lens has more than a few portable glass components inside it. By adjusting these components, the focal length of the lens can be altered. Modifying the focal length alters the view distance as well as reduces the field of view, thereby making the projected image to appear larger.

It must me noted that both the optical zoom and the digital zoom are components that are used to magnify an image, but they work in fundamentally different principles and acquiesces drastically different results. In general, optical zooms always produce a far finer and advanced image than digital zoom.

Looking at the functions of these zooms, in digital cameras that offer optical zooms function the same way similar to a zoom lens of a conventional analog camera. A conventional lens works by accumulating light rays that are projected over a portion of a film, and in this case of a digital camera optical sensor. The distance of the lens from the focus point where all of the light rays converge is known as the focal length of the lens. Unlike the optical zoom, the digital zoom works by ranging the pixels in the ultimate image after the image has been captured. The fact remains that the same number of pixels are collected when the photograph is magnified. The only thing that alters is the light rays that are projected over the optical sensors to figure out those pixels.

It is a common intuition that optical lenses are far better than the digital zooms. The reason is that the digital camera zooms are more prone towards computer applications in them rather than mostly human interactions and expertise. Yet, it also remains a fact that beginner photographers find it more useful to handle a digital zoom and also its computer friendly nature. There the computer does the intricate tasks of finding some levelheaded approximation of colors that pixel might take up as it had captured the images or photographs. Many algorithms are existent in this area, but perhaps the most abundantly used algorithm involves looking at the pixels that are quite nearly like neighbors and come up with a kind of an average. Anyways the process remains too complicated and its end result is what the digital zoom users are interested in.

Thus the ultimate truth remains that it is useless to compare digital zooms with optical zooms. Perhaps it is more logical to compare optical zoom with optical zoom and digital zoom with digital zoom. Both these two types of zooms, the optical as well as the digital, have some good and bad qualities. Both of them have some extra features and preferences over the other. And thus it is not wise to compare them, even though a comparison may exist. The efforts would then perhaps look like comparing oranges with apples!

By Jakob Jelling

http://www.snapjunky.com

About The Author

Jakob Jelling is the founder of http://www.snapjunky.com. Visit his digital camera guide and learn how to take better pictures with your digicam.

Digital Imaging Explained

Digital Imaging is a process where an electronic photograph, scanned document, or image is converted into a series of electronic dots called pixels. Pixels is an acronym for "picture elements".

After the image is converted, or digitized, it is stored on a memory storage device which may be a hard drive or some sort of electronic storage device such as a memory stick. The pixels are stored in a compressed format to save storage space.

As each pixel is being created it is assigned a color value, called a tonal value, of black, white, shades of grey, or an actual color. These pixels must be processed by a piece of software in order for them to be called up and viewed as an actual image later.

Traditional cameras capture images onto film while digital cameras use an electronic chip known as a Charged Coupling Device (CCD). The CCD is actually a grid of miniature light-sensitive diodes. These diodes convert photons (light) that strikes them into electrons (electrical impulses). The technical name for these diodes is 'photosite'. The brighter the light is that hits the photosite the stronger the electrical charge is that's produced.

After converting the photons into electrons, a mini-computer, located inside of the camera, reads the stored electrical value in each photograph. Then a built-in analog-to-digital converter turns the stored electrical value into a digital value. These digital values are then stored on the cameras memory storage device. When these digital values are recalled by software, and displayed on a screen, they reproduce the image that was originally captured by the camera or digital input device.

The digital image that is created by the CCD is huge. It's far too big to be easily stored in the relatively little amount of storage space that's available to a digital camera. Accordingly, the camera's computer compresses the image to make it smaller.

There are two basic methods for achieving this compression. The first method takes advantage of repetitive patterns in the image. For example, if you are taking a picture of an airplane that is flying in the sky, a lot of the picture will be a chunk of blue sky. The camera recognizes that there are multiple parts of the image containing the same digital information, so it only records a small piece of the sky. Then it simply creates a map to tell it where the rest of the sky belongs. When the picture is ultimately displayed the sky appears exactly the same as it did in the original image when it was first captured. The only difference is that the overall storage requirements were reduced thanks to the camera's clever mapping techniques.

The other method uses a procedure called irrelevancy. This methodology automatically removes digital information that is not visible to the human eye such an infra red light.

Digital imaging is amazing yet we have only started witnessing the revolutionary changes that are yet to come.

About The Author

Warren Lynch has been shooting commercial photography since 1979. Clients include Several Regional and National accounts. Sign up for"The Digital Dose" and receive his tips every other week for FREE! http://www.photopheed.com.

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Digital Cameras & Resolution

While analyzing any camera, one of the most important qualities of a photograph that a person seeks, is resolution. This word itself needs a brief discussion before progressing onto its implication upon a digital camera. This is a word that seems to almost every new photographer as a nightmare. With all the myths and irrelevant information circulating all around, this is quite common. This however is an effort to clear those misty myths and provide good information for everyone. Without any complexity, generally a photograph, either viewed on the screen or printed, is composed of infinitesimal dots (called pixels). The greater amount of these dots that can fit per inch of space, the smaller the dots and the sharper the image. This is the basis of understanding ... resolution!

Considering an image at 100 dots per inch that is one square inch in size. It is comprised of 100 X 100 pixels. Now changing this image four-times to four square inches. This image is quite clear. Now the same 100 X 100 dots exist, but with only 25 dots per inch. The appearance becomes grainy. This is the factor know as resolution that determines this quality of image. Hence it can now be interpreted by any person what the importance of resolution is and where it is required in the filed of photography. While purchasing a digital camera, resolution is a very important factor to take into account when settling upon buying a particular one.

Digital camera resolution comes in as Mega pixels. A Mega pixel is composed of one million pixels. The greater the number of Mega pixels, the greater becomes the standard of quality of the photograph or picture. As a standard, one mega pixel is the minimum bottom line below which a digital camera must not be usually purchased. This is a general decided value for any amateur photographers also, and the exact value of higher mega pixels is not a concern for people who do not intend to print the photographs. In an effort to scrutinize the pixels in an image out of sheer anxiety, a person can magnify the display in a photo editor, like a little magnifying glass, and they become very much visible!

The resolution decides the ultimate the future of the hard copy of a photograph being taken, whether a digital camera or a conventional camera. A print from a high-resolution photograph challenges anything produced from a chemical film camera. However a low-resolution image print of a photograph is quite appalling with fine details and restrained color transitions absent resulting from too few pixels. Thus the resolution can spoil an entire effort to freeze a memorable moment. Thus it is so vital. As a general rule a minimum of 200 pixels are required for each linear inch of a print. However, some printers get better results with 300 pixels per-inch of resolution.

The above discussion has brought into light a lot of relevant information regarding resolution and its application in the digital camera and photography. Also in the concluding lines it can only be stated for digital camera ... resolution is the real soul!

By Jakob Jelling

http://www.snapjunky.com

About The Author

Jakob Jelling is the founder of http://www.snapjunky.com. Visit his digital camera guide and learn how to take better pictures with your digicam.

Digital Camera Memory - An Introduction

The digital camera is essentially a computer-based device, whose core is controlled by the computer. And as a result the photographs are stored in a location called memory. Now, this concept is or paramount importance in discussing digital camera. Strictly speaking, digital camera memory is where digital pictures are stored inside the camera. The digital camera memory is an essential and often a very neglected and overlooked section of equipments for digital photography and camera. There are many types of memory available for digital cameras, and it is a good practice to mull over what type of memory a camera uses before buying a digital camera. This discussing is aimed in revealing some of this relevant information!

Knowledge of the digital camera memory is very essential for using such a camera and capturing photographs. The most common form of such memory is a memory card. These are reusable, have a limited capacity and can always be installed when required in excess. A person needs to be well informed about enough memory available for taking photographs. And accordingly make arrangements. Generally, digital cameras come available with low capacity memory cards, and it is a wise purchase to acquire higher capacity memory cards in order to budget for an additional card for later use.

With the increment of a camera mega pixel counts, it becomes essential to use higher capacity memory cards. Some of the small sized cards are for example the 64 megabyte cards and larger ones are like 1-gigabyte cards or combinations of megabyte cards.

Digital camera memory is available in many shapes and facade depending on the type of digital camera that is being used and even and the number of pictures that are required to be stored in the digital camera memory. These different types of memory are solely dependant upon the requirements of the digital camera, like for example a camera using compact flash type 1, requires the use of compact flash type 1 digital camera memory. Other examples of types of digital camera memory are Compact Flash Digital Camera Memory. It is suitable for rugged and rough handling and is also resilient for incessant usage. This is also small in size to assist better handling and flexibility. What more, it is cheap and anyone can afford it!

Generally, the sizes of a digital camera memory are as follows, 64 MB, 128 MB, 256 MB, 512 MB, and 1 GIG. Again, the digital camera memory depends upon the file format used to store photographs upon and the compression used by the manufacturer when storing digital images into memory.

Coming to the concluding portion, it is recommended to get hold of one 256 megabyte or two 128 megabyte cards for a 3-5 mega pixel compact digital camera. For higher resolution photographs, 512 megabyte and 1 gigabyte cards are also available. These are some of the guidelines for revealing the true facts about the different digital camera memories and their secrets. Summing up in a few words, with such a powerful tool as the digital camera, a proper selection of memory can help a person achieve the glorious tasks of freezing a precious moment from life for eternity!

By Jakob Jelling

http://www.snapjunky.com

About The Author

Jakob Jelling is the founder of http://www.snapjunky.com. Visit his digital camera guide and learn how to take better pictures with your digicam.

Digital Camera Disc Formats

As it is a fact that digital cameras are comprised of miniature computers that have storage discs for retrieving the images as digital information, so a certain amount of knowledge is necessary regarding the digital camera disc formats. A proper understanding of the disc formats of the digital camera memory can help the photographer or user make efficient use of the device in a correct and useful fashion. This discussion is aimed at revealing these little details!

At present in among the common users of digital cameras there are two main types of storage medium available nowadays. Some cameras use 1.44-MB floppy disks, which are available almost everywhere in the present market trends, and some digital cameras use assorted forms of flash memory having a range of capacities covering from several megabytes to a gigabyte. The difference lies between these two types of disc formats in their capacity. Floppy disks have a fixed memory capacity that cannot be altered, and the flash memory devices have capacities that keep increasing everyday. This is a kind of boon because of the fact that picture-sizes are also increasing constantly with the invention of higher resolution cameras that become available in the markets with daily technical advancements.

The major and the most popular file format available for digital cameras are TIFF and JPEG formats respectively. Looking in a little detail into these two formats, the TIFF format is an uncompressed format without any alteration of image sizes and JPEG is a compressed format that does alter the image size for economic use of memory for storage. Certainly, from common sense, majority of the digital cameras use the JPEG file format for storing images and photographs, and they even offer quality settings such as medium or high and accordingly the size is altered thus providing both memory management as well as quality management of the pictures.

Again looking at the disc formats from a different angle, it is apparent that a 1.44-MB disk cannot clutch many photographs or images. Sometimes, in fact, they can't even fit one picture on one disk, due to high quality and subsequent seize and memory requirements. However, the floppy disks have their own advantages. In today's world of Internet publishing and email a picture size larger than 640x480 is hardly required, and more or less always they are saved in JPEG formats. During such times it is possible to accommodate about 15 pictures on every disk. Thus making situations more economic and flexible for the users. However for storing bigger and greater quality pictures higher capacity media are required such as a 128-MB flash memory card that can store more than 1,500 small compressed images or 20 of the uncompressed 1600x1200 images.

Thus so far a handsome amount of information regarding the disc formats has come into light from the above discussion. It is a humble effort to bring out the rudimentary knowledge for such a wide field of study as digital camera disc formats, which includes photography as well as computers all in one. What a fantastic combination!

By Jakob Jelling

http://www.snapjunky.com

About The Author

Jakob Jelling is the founder of http://www.snapjunky.com. Visit his digital camera guide and learn how to take better pictures with your digicam.

Digital Camera Batteries

Every device needs a driving force to operate, just as every living thing needs a heart to keep it alive! Basically electric power does this job for any kind of devices nowadays. Similarly for any digital camera too, a good battery is necessary in order to ensure an excellent performance from it as long as possible. Being such a crucial task as if searching for a good heart for a human being, perhaps the most tedious thing about digital cameras is the quest for their battery consumption and thereby finding a suitable one for any particular one. Yet a basic overview regarding this so important component of a digital camera makes the ventures of the users somewhat less complicated and makes life easier with a proper selection of the battery!

Leaving aside the ever power thirsty LCD screens and flashes, the digital cameras themselves exhaust batteries much faster than film cameras, due to their state of the art electronic designs and intricate circuitry. Many digital cameras run from AA cells, around 4, and can even drain a set of alkaline cells in less than 1 hour of working! For example, the Kodak DC120 draws about 210mA during start or switch ON, but progresses to around 1.3A with the association of the LCD fully working and can go ahead to about 2.1A while picture taking and after it too.

With all these nightmares regarding the batteries of the digital cameras, it is worthwhile to analyze and reveal some of the available batteries for the digital cameras in an effort to explore area of power consumption in this fantastic device. Coming to first one of these, like its great name suggests, it is the Li-ion (Lithium Ion). It is one of the latest cell types available to digital camera users. This has many advantages to its credit. It is light in weight and currently available for many commercial uses and thus being so the Li-ion (Lithium Ion) battery type is becoming quite popular. This has an added advantage of being able to endow with more power than any of the other main cell types available. It is also free from the problems of memory effect, hat some battery types do have, and maintenance is least in this type of battery. These are but real goodies about this Li-ion (Lithium Ion) battery. Yet it has one major disadvantage, that is, the price is usually significantly higher than conventional batteries, due to its sophisticated design and technology.

Coming to the next one in the line, the NiMH (Nickel Metal Hydride). This is a battery that is perhaps the most frequently under use for not only digital cameras, but also for other sophisticated devices like laptop computers! This has the advantage of being cheap in price due to the fact that it incurs cheap manufacturing costs, and thus a choice for many users! But this does have the problems of memory effect, and much more maintenance and care is required while handling this kind of battery.

Another such battery is the NiCAD (Nickel Cadmium) Battery. This is perhaps belonging to one of the older cell types generally available for older laptops and electronic devices. These batteries or cells have an aptitude for handling high power loads, and therefore is more frequently found in handy power tools and devices that require more amounts power to work efficiently and perfectly. Yet again, these batteries too have the problems of memory effect, and much more maintenance and care is required while handling this kind of battery.

Apart from the different batteries themselves, the selection should be based upon the charging techniques and the different charges available for all these digital camera batteries. Latest batteries come handy with charging free techniques too! So care needs to be taken in this area also, depending upon the requirements of the user.

With all the vivid conversation regarding the hearts of the digital cameras, their batteries, it is expected for every person going through the lines to have grabbed a significant amount of information in dealing with the intricacies of the purchase, and thereby also augment the ability of the person in using such a sophisticated device as a digital camera with a proper battery!

By Jakob Jelling

http://www.snapjunky.com

About The Author

Jakob Jelling is the founder of http://www.snapjunky.com. Visit his digital camera guide and learn how to take better pictures with your digicam.