Recent technological advancements in dentistry necessitates continued education and the acquisition of the latest modern dental equipment so dentists can offer the highest quality patient care while generating a highly effective and cost-efficient dental business. In these days of modern medicine, patients seek dental professionals who offer the latest in digital and computerized technology, never minding the tremendous costs of new equipment and time consumed in research on the latest in digitized x-ray imaging and educational software, for example. It is critical to the continued success of a dental practice to stay current on laser dentistry, digital radiology, the latest technology in digitized intra-oral cameras, and the newest software for your dental office and continued education.

So what’s the news in dental technology? This year, it’s all about dental x-ray systems and digital imaging. For years, radiologists have experienced difficulty viewing digitized display images, but due to recent advancements in high-resolution technology, high-res displays have corrected this problem. The latest models in dental x-ray products and digital technology support technological advancements and developments in dentistry and these days, the digital imaging systems are not the only machines producing high-resolution images. In fact, the imaging systems themselves can be found in high-resolution in online dental shopping systems like Den-Med-Pro.com.

Indeed, modern dentistry is diagnosing and treating every dental-related problem, from buying dental equipment online to diagnosing oral cavity, gingivitis, or to determine if root canal or extraction is necessary. Check out the latest on Dental Products. and remember to check out the best dental source in the industry to get information about the latest in equipment and dental-related technology from our press releases and purchase your preferred digital imaging system from this year’s selection of the highest quality x-ray and digital imaging systems on the market today.

Technical innovation has been credited with the shift from film to digital, in particular the growth of high speed Web access, which makes uploading images so much faster. With well over half of all web users in the UK now on broadband uploading here is just as fast and simple as in the US and usage is expected to rise in line with the American uptake.

However, digital imaging prints are just half the story, with sales of traditional film cameras completing the picture. Over the same period as the rise in digital imaging print production, sales in traditional film cameras have fallen 49%, while digital camera sales rose 5% over the same period, with nearly nine out of ten digital cameras offering resolutions in excess of 6million megapixels. Affordable 10 million megapixel cameras are now retailing at less than half of the price that they were two years ago; combined with the fact that shutter speeds and specifications have improved, this has made digital cameras a real alternative to film. Plus the cost savings of using digital imagery cannot be underestimated. Rather than waste several rolls of expensive film to get that one elusive shot, with digital cameras any picture not up to scratch can simply be deleted after being reviewed on screen.

Another attraction of the switch from film to digital is that the storage of digital images is becoming much easier. Many new computers are equipped with much bigger storage capacity on their hard drives, or if not big enough then storage devices such as USB pens or USB hard drives can be plugged in, allowing for the increased storage of treasured images. In addition many websites offer online vaults meaning that pictures that would have taken up valuable hard drive space can now be stored online and accessed through the web.

Of course, there is always the old-fashioned way; home photo development is extremely easy now with home-printing equipment available with most cameras, while there are also many instant print booths in photo shops, supermarkets and chemists.

With the ease of use, uploading and storage of images and tumbling prices of high quality digital cameras it is easy to see why digital photography is taking America by storm. It is only a matter of time before it happens here in the UK.

I purchased my first copy of 123di (version 2) about 6 years ago, moved up to version 4 a few years back and just recently updated to their most recent release, version 6.2. Digital imaging has changed incredibly in this short period of time and while I found these earlier versions to be very well done I felt it was time to see what Vincent and his crew were up to with the latest version of 123di. I purchased the latest version a few weeks ago, here’s a quick review.

The unique aspect about the 123 of Digital Imaging is that it’s an ebook with so much more than what most of them give us. Beautiful illustrations combined with animated sequences and an interactive interface make the product a true joy to browse through whether you are a beginner photographer or a professional. Over 5,500 pages cover topics ranging from understanding digital imagery (light, sensors and more) to lens and camera selection, exposure, composition and image editing. An extensive section on RAW editing is available for advanced users and I would recommend even for the novice to explore. One unique concept is 3 levels of learning; starter, essential and advanced. This makes it possible to select a topic and work your way through the information based on your knowledge at the time, proceeding to more advanced techniques as you feel more comfortable.

While the 123 of Digital Imaging primarily covers the use of Photoshop and Photoshop Elements the workflow procedures and editing information is valid for almost any photo editor out there so even if you don’t use an Adobe product this section still offers plenty of useful and relevant information. Adobe Lightroom and ImageReady are also well documented.

Of interest beyond the scope of the actual photography is an extensive section on managing, viewing, sharing and printing your photographs. The section on managing your images should be a “must read” for anyone that values the work they do. Backing up images and organizing your photos so you can find them is covered in detail. How many of you are up to date on this?

For Nikon users there is a special Nikon edition containing a few hundred additional extra pages of coverage of Capture NX 2.2, Capture NX 1.4, Nikon Capture 4.4, and Nikon Scan. Being a Nikon user this is the edition I purchased and I found the Nikon NX2 information (my RAW editor of choice) very well laid out and extremely informative. I find that I reference the section often as I’m working on images and it’s infinitely better than the official NX2 user manual. Once again, the use of numerous illustrations really made understanding many of the concepts far easier than just reading a typical book or e book. I don’t use the other Nikon programs but expect the information contained in 123di would be just as good.

123di is available in a standard edition and extended edition. The extended version is well worth the additional purchase price regardless of whether you are buying the regular version or the special Nikon version. For an additional $10 you gain the ability to bookmark pages, add notes to pages, search for multiple keywords and a host of other benefits. With over 5,500 pages of information available I found this to be a must have feature to keep track of what I was learning and exploring.

What’s my verdict on this product? As a professional photographer with over 30 years experience I like to think that I have a good grasp on photography technique. I have also been doing digital photography since the dark ages about 10 years ago and have taught many photography courses over the years. With this in mind I am amazed at what I have learned from this digital photography guide and can see using The 123 of Digital Imaging as a teaching aid in future courses. For the beginning photographer there is years worth of learning potential here and the great user interface makes the information available in seconds. For the seasoned pro there is lots of valuable digital photography information available as well.

An image captured in film is an incredibly complex physical object that has a life of its own, and can be interpreted directly by inspection with the human eye. A digital image, on the other hand, is an electronic representation of a scene – a sequence of numbers specifying red, green, and blue light intensities that requires some form of software to render it into a visual form that can be displayed on a suitable imaging device, like a photo-printer.

When an image is captured digitally, it is done with a mosaic of light-sensitive electronic pixels. These pixels are actually independent square-shaped photodiodes which are arranged in the form of a large tiled surface. Well, large from the point of view of a single pixel, since if we were to enlarge the pixel to the size of a kitchen floor tile, then the area covered by the entire image sensor would be about the same as that of a football stadium.

A typical medium-resolution digital camera might have about 4000 electronic pixels arrayed along one edge of its image sensor, and about 2500 along the other, making for around 10 million pixels overall. The image sensor in this case would be said to have a 10 megapixel resolution.

Now, when an image is recorded electronically, what each pixel on the sensor measures is the amount of energy the light imparts to it during the photographic exposure. Or in simpler terms, the brightness of the light. This large array of numbers is known as the RAW format of the image. It is, in effect, the digital equivalent of the film negative (or positive in the case of slide film), since it carries ALL the information associated with the exposure.

As it happens, you cannot simply interpret these RAW image records in a color-by-the-numbers type fashion. If you were to assign the color and brightness of each pixel to a corresponding printed pixel on a piece of photographic paper, or on a computer screen, you would not see a pleasing representation of the scene that was photographed.

The reason for this is that the way our eyes respond to color brightness is different than the way electronic pixels respond to it. Our eyes are less responsive to large changes in brightness than are electronic pixels. The RAW numbers need to be processed in a way that compensates for this difference.

What this means is that a lot of number crunching needs to be performed to get the best result from our RAW image before it is printed in any form. This might be done inside the camera if you want to immediately see a preview of the result on your camera’s LCD screen. Or it might be done using complex image processing software on your PC, once you have downloaded the image. Until then, the RAW image needs to be stored for later use.

Unfortunately, in the race to conquer the digital photography landscape, digital camera manufacturers adopted a first-to-build is first-to-dominate philosophy and created their own proprietary versions of the RAW image format. A Canon RAW image, therefore, is formatted differently than a Nikon RAW image for the exact same image. Due to the proliferation of RAW formats, image processing software now has to cope with hundreds of competing RAW image formats. In practice this is just not possible, so your imaging processing software (if it comes from a vendor other than your camera manufacturer) is likely to support only the major RAW formats, like for example Nikon’s NEF format, Canon’s CR2 format, and Fuji’s RAF format.

This situation is likely to improve in time, however. Adobe has entered the digital imaging fray by publishing an open standard for a RAW image format that it calls Digital Negative, or DNG. Slowly, camera manufacturers, like Hasselblad, Leica, Ricoh, and Samsung are building DNG support into their cameras, and with luck the larger players in the field will follow suit.

What this means, assuming that a standard such as DNG is adopted, is that when a photographer captures an image, stores it in RAW format, and then forgets about it for 10 years, they won’t discover, when they get around to retrieving it again, that their image format has been obsoleted and there is no longer any software that can render the file into a viewable and printable image. For large corporations with millions of archived images to preserve, this kind of problem represents a logistic nightmare, and it is very costly to stay on top it.

In the long run, a standardized RAW format will ensure archival integrity of images, reduce headaches for unwary photographers the world over, and save them both time and money. DNG support is currently available in Adobe software packages such as Photoshop, and Photoshop Elements, and will likely migrate to third party image software packages as the standard is embraced. Adobe also offers a free Digital Negative Converter from its site which allows forward-thinking photographers to convert their existing RAW image format files into a DNG version as well.

As has been mentioned, software is needed to convert a RAW format image into one that can be displayed and printed. This is analogous to the “development” process for negative film. The most common image display format is JPEG (which stands for Joint Photographic Experts Group). The JPEG format is one that can support a great deal of compression, so that the final viewable image is substantially smaller in size (number of bytes) than the RAW image file. This means it can be sent on to others easily, via email for example. The JPEG format is also an industry standard image format, so the file can be opened and read by all commercial image processing software and a large number of open source image software packages.

Another standard image format is TIFF. However, TIFF file sizes are generally much larger than those for the equivalent JPEG image, so they are used mostly by professionals who need to produce large print reproductions with high resolution. In fact, the DNG standard is based on a version of TIFF.

Various image processing algorithms are applied to RAW images to convert them into printable form. This includes performing white balancing, which is the means by which an unwanted overall color cast is removed from the image. When a color cast is present, a photographed all-white object will render with an off-white component that subtracts from image fidelity. The RAW image stored by your digital camera will likely have a record of the white balancing correction used when the image was created, but you are free to adjust this when editing the image derived from the RAW format.

It is important to appreciate that when you are trying to the create the best possible printable image, you need to start with the original RAW image file. Once a printable version has been created, such as a JPEG version, the applied image processing algorithms have “tossed out” a great deal of image information that was deemed unnecessary. These lossy operations are irreversible, and they limit your remaining options for tinkering with the image should you decide that the result is not quite what you are after. The solution is to return to the RAW format file and start over.

Because the differences in file sizes are so great, if you are not concerned with collecting RAW image files and processing them for the perfect image at a later date, you should consider allowing your camera to create JPEG images as the default, and ignore the RAW format altogether. This will improve the responsiveness of your camera, because you do not have to store the large RAW images to your memory card. If, for example, you are photographing a sports event, your frame-rate when shooting in the continuous mode will be greatly improved. Also, you will be able to record a much higher number of images to your memory card before it fills up.

On the other hand, if you will be photographing something of importance, do consider the implications of not using the RAW format to record your images. You might regret it later.

For Beginner might don’t know what was the definition of digital imaging. Below article will explained about digital image and its relation on photography world.
When a picture is taken, a digital camera stores all of the photographic information on a small computer memory chip known as a flash memory card. Digital cameras store digital images in JPEG format which uses data compression. More expensive cameras also use TIFF and RAW formats that use more storage space but give experienced photographers more options in processing the image.

Megapixels is a measure of how many millions of individual photon capturing elements are inside the digital camera sensor. The sensor replaces the film in a traditional camera, as each light element of a picture is translated into thousands of bits per picture or pixels.

Each digital camera has its own settings and firmware (software built into the camera) which determine how the digital picture is stored, that is, how many pixels are used per picture and in what format the pictured is saved. A digital camera set to capture images at the best quality possible will use more pixels per picture and therefore more data storage memory also. Cameras with greater megapixel capacity produce higher resolution photography.

A pixel is another computer term which is short for picture element. In a stored digital image file, a pixel refers to a single point of light in the photograph. In a digital camera that takes 1600×1200 pixel photos, each image contains 1,920,000 pixels or approximately 2 megapixels. Similarly, a 2560×1920 pixel photo stores 4,915,200 pixels or roughly 5 megapixels.

Digital cameras typically come with a cord to connect it directly to a computer. This allows the camera’s ability to read the flash memory card to be used in conjunction with computer software.

Alternatively, the memory card can be removed from the camera and placed into a card reader already connected to a computer. Some computers come with internal card readers that have multiple slots for different memory card formats. For my SD memory card, I bought a cheap USB device that allows me to plug my flash memory card into my computer USB port.

Using either method above, you can now open digital image files from where they are stored on the flash memory card and save the files on your hard drive. The copied images on the hard drive becomes the original source for all future work done with these digital images. Once you are assured that you have successfully copied the images to the hard drive, the flash memory card can now be reused to take more photos.

I have a folder (or directory) on my hard drive called camera downloads. This is where I keep all of my original digital image files. When I want to do more work with a particular photo, I make yet another copy of the digital image file into a second folder which is my working directory. This ensures that I always have an original copy because I never want to alter or destroy the original in any way. This is like hanging on to the original negatives from processed film only now it is done in the computer–virtually. That’s another plus for digital scrapbooking.

Most important to this entire process is to always make regular backups of all your personal data and digital images from your hard drive to another type of storage medium, be it CD, DVD, tape, online backups or a redundant hard drive.

So let’s recap. We took a picture that was stored digitally in the camera’s flash memory card. We connected the camera to the computer or we moved the memory card into the computer card reading device. Then we copied the picture from the memory card to the camera downloads folder on the computer hard drive. And for future processing, we made another copy of the picture into our working folder. Finally, we’ve made sure that all our original photos are being backed up on a regular basis to another storage medium.