Understanding Digital Photography
Most serious photographers and all professionals use a Single Lens Reflex camera (SLR), the definition of an SLR camera is that the image is captured exactly as you see it in the viewfinder. However there are now two types of SLR the single lend reflex film (SLRF) and the single lens digital (SLD). They are both single lens camera, but digital does not use film and the resulting image can be processed at home with the aid of a photographic editor such as the chemical component in a traditional camera is film. When film is exposed to a real image, it makes a chemical record of the pattern of light, coming through the lens. Film has a collection of light sensitive frames, suspended on a strip of plastic. Colour film has three different layers of light sensitive material, which respond to red, green and blue (known as the (RBG) values. When the film is developed, it is exposed to chemicals, which dye the separate layers of film, into a color negative. All modern film is made up of silver halide crystals.
The digital revolution is the conversion of analog information, which is represented by a gradually fluctuating wave, to digital information represented by bits. This shift in technology has revolutionized both visual and audio information, in the form of cameras, televisions, and MP3 players. Whilst SLR cameras relied on a chemical process to transmit an image onto film, all digital cameras have their own inbuilt computers, which records images electronically. Essentially the digital camera represents a form the computer can understand, the information is collected in bits and bytes. Each part of the image is broken down into "pixels", which is a contraction of picture element. When monitors display colors they are arranged in rows and columns, separated into thousands of little squares of color. They are so minute that they appear to be connected, but if you zoom into this the squares are quite separate. All these squares are the smallest dot that can be displayed by a monitor, and combined together they display the completed image.
Because of the enormous difference in the way the two types of camera work, there has been in many people's mind a huge confusion as to what type of camera to buy. Added to that, there are three types of SLRD cameras. SLR cameras had conventional shapes, because it was necessary to have room for the film, and the light path, SLRD cameras do not have these constraints.
At the lower end of the market for the digital cameras are the "Point And Shoot", there SLRF equivalent is known as "idiot Proof". They have low resolutions of between 3,000.000 and 4,000,000 million pixels. The next level is the proconsumer camera typically with a resolution of 4-5 million pixels. At the top end of the market the resolution is between 6-12 million pixels. The greater the number of pixel resolution the better the quality of the resultant image.
As with any new technology there are pros and cons with both types of cameras, and it will be decades before digital cameras replace SLR, if indeed they ever do, more likely the SLR cameras will be retained for use in a specialist market. It is also fair to say that the quality of digital cameras has improved enormously in the last ten years, and the price has also reduced dramatically.
One major factor determining the choice of camera is weight. Typically the SLTD camera is half the weight of it's SLR counterpart. The point and shoot is fully automatic, bit like their counterpart the idiot proof they do not give the photographer much creative control. They have earned their stripes, on the occasions when a photographic opportunity would have been missed with SLR. The middle of the range family of digital cameras represent the fastest growing demand for new cameras as they represent the ease of digital with a higher level of creative control. You can also make larger prints, as well as use the function of through the lens focusing.
The higher resolution top of the range digital cameras offer the same wider exposure controls and the ability to use different lens, in other words they offer the best of the features of analog photography to digital photography. The most recent development in digital cameras has been the development of a standard image sensor in the ratio of 4:3. As the image sensor has a standard size and shape, the mount for the lenses can be identical. That means that they will fit more than one type of camera, and will ultimately be cheaper to produce, as they can be produced in higher volume. Canon lenses for SLR film only fit Canon cameras, but they will now disappear. In future to add to the growing confusion, there will be a plethora of lenses from multiple manufacturers, to fit your camera, competition between the lens manufacturers should mean cheaper and better quality lenses. One factor not to be forgotten in deciding whether or not to go digital, is that the quality of the lens is still of paramount importance, it is still better to have a cheaper body and higher grade lens.
Another major factor is that digital image sensors are smaller than frames of film, which means that the lens can be correspondingly smaller and lighter. Until the development of the 4:3 ratio systems, digital cameras used conventional lenses.
The type of digital camera to choose is as complex as buying a car, it is a matter of personal choice, dictated by what it is used for, and the available amount of money to spend.
Fortunately there is a large amount of help in this respect already available on the Internet for you to research. At imaging resources you will find a large database dealing with individual camera models, the reviews also cover the scanners and printers as well. It includes member's forums to assess individual comments as opposed to manufacturer's claims. To review the cameras by make and price there are Canon, Fuji, Kodak, Minolta, Nikon, Olympus and Sony.
One of the major drawbacks of using digital film, was that the quality of prints produced on a personal computer's printer was less than satisfactory.
This obstacle has been overcome by the development of online printing centers. You upload the film to them via e-mail and they print the images and they are returned by post, with a professional standard. Kodak gallery offers you the opportunity to have your images improved and printed, and then to share your album via your computer, which means that your personal scanner is not necessary.
luminous-landscape.com/tutorials/colour_theory.shtml excellent article on colour to improve the final color of images
Publisher & author: Roy Barker. Roy is the author of the popular ebook, Income from Photography - a downloadable ebook which guides the reader on how to start up and market a Profitable Photography business. It can be viewed at profitable-photography.com. Other related and reviewed services & research sources can be found at profitable-photography.com/html/117/ The information on this and adjoining pages may be reprinted and used on other sites providing all information remains unchanged and the article and all pages remain as they are found here in its current font size & image with all links in tact.
Tips for Purchasing a Digital Camera Lens
Your lens is an essential element to good photographs. It's not just your camera.
Getting Your Photos Ready for Sharing
One of the main reasons people buy digital cameras is so they can share their photos with others. Even if you are just going to print your photos for yourself, you will want them to look their best.
Who Had The Better Brushes Leonardo or Michelangelo?
Ordinary photos of dull subjects do actually sell, but the dramatic shots generally have an unusual element that makes them stand out from the crowd. They are well-composed and they carry no excess baggage.
The Paradigm: Going Digital
As you might imagine the paradigm shift from traditional film-based photography to digital is rapidly creating new opportunities to learn and grow. The photography industry is moving at an incessant pace, and digital cameras sales have surpassed their film-based cousin at an alarming rate each year.
Removing Cracks and Creases when Restoring Old Photos - 5 Minute Digital Fix
A common problem with old photos is that they often have un-desirable cracks and creases.These can be removed quite easily using the Clone, Healing and Patch tools found in Adobe Photoshop.
Taking Professional Quality Pictures
By now I'm sure you've used Either a digital or film camera. You've taken pictures and had them developed and just weren't satisfied with the Quality.
A Guide to Underwater Cameras
There are two types of underwater camera systems: an ""amphibious"" camera, which is a self-contained waterproof system, and an SLR land camera with waterproof housing. Amphibious systems are small, compact, and easy to travel with, while SLRs offer more advanced features, such as auto-focus, advanced exposure control, and through-the-lens viewing.
Photography Courses Online
There are also some excellent online courses available and some of them are free, just type "Photography free online courses" into your search engine. Morguefile is an example they offer sound technical advice on a variety of subjects, as well as aspects of types of photography, it is a good point to start with, showing the resources Jodie Coston, a freelance photographer, has made available online, after a series of classes she gave.
How to Buy the Right Digital Camera
When buying a digital camera there are many things you should consider. First you should understand how a digital camera works.
How Can I Preserve My Lifetime of Memories in Photographs?
Like most folks you have probably have organized and sorted your photos atleast once. The problem is they never seem to stay organized no matter how hard you try, and even if they do they seem to lack that original impact that they had shortly after you took them or if they do, you never drag them out until sadly, someone passes on.
Cropping Digital Photos Into Shape
Did you know that in many cases digital photos are cropped by the time they reach paper? If you have never "cropped" your photos manually, you may not be aware that it is happening.What is cropping?Cropping is the process of trimming portions of the digital image so it fits in the shape of the paper.
Sometimes, usual photographs look so common and boring. Converting your pictures into charcoal or oil painting is a welcome change but then, a lot of people have been into these crafts already that there are times when these portraits too, look clichéd.
How to Make Your Production Look a Lot Slicker for £40 More
Tight BudgetsTight budgets are common these days. But the demand for high production values hasn't fallen with a drop in funds.
Memories That Get Lost
How many people have pictures in a shoe box? In a drawer? Inside a book? Sitting in the garage?Imagine 40 years from now. Someone will get those pictures and they will say: Who are these people? What are they doing in this boat?They won't have a clue about the stories that those pictures tell and they will probably throw part of your story away.
Photography Success Without School
What I learned from a mentor that enabled me to go from an amateur photographer to a professional portrait photographer in very specific steps is something I like to pass on. Rather than spending countless hours in classes learning every possible detail, I learned just the necessary specifics and now I work out of my home full time and have been in business for over 17 years, but I started out with practically nothing; just an interest in photography and the need to earn more money.
Kodak Digital Cameras - The Giant Comes To Digital
George Eastman, founder of Kodak is world renowned today. Digital cameras or cinematography, Kodak has excelled in all fields.
Digital Camera Basics
Digital Camera Basics? The VocabularyShopping for a digital camera can be a difficult task considering the sheer number of choices out there. The number of manufacturers, models, and price ranges that need to be sorted out make the process difficult enough, but throw in all the buzz-words that need to be understood, and even a short list of cameras can become difficult to analyze.
Digicam File Formats
Looking at the digital camera, a person can visualize it as a combination of a camera along with a miniature computer system that stores the images as files or sets of bits, rather than a chemically treated film. Thus it comes to be a fact that there are certain file formats in which these images of the photographs captured by the camera are stored.
Digital Film Processing is Really the Only Option for Truly Quality Prints
Digital photography has taken off like wildfire these days, primarily due to its ease and quality in its digital film processing. With a good digital camera, it's as though you're using the very best Kodak film for every single one of your digital photos.
Applications of Underwater Video Cameras
There's so much you can do with an underwater video camera. If you enjoy snorkeling or diving, you can use the camera to show your friends and family the beautiful tropical fish, colorful coral reefs, and other underwater treasures you encountered on your vacation.
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