Sunday, February 10, 2008

NEWS:Polariod Downfall


Polaroid instant photographs entranced a generation in the 1970s as colour images magically emerged from an unpromising white square of plastic.
The technological breakthrough was endorsed over the years by luminaries as diverse as Sir Laurence Olivier, Ali McGraw and Kermit the Frog. But now, with the push of a factory button, Polaroid has consigned its iconic invention to the history books.

The American-based firm has confirmed that it has stopped making its instant film and expects supplies to run out completely in 2009. The announcement has sparked a sales run on the cult cameras with enthusiasts rushing to snap up remaining supplies.

Polaroid is closing factories in Massachusetts, Mexico and the Netherlands with the loss of more than 450 jobs and will belatedly focus on producing digital cameras, portable printers for mobile phones, TVs and DVD players.

Polaroid has already stopped making the cameras. "We are trying to reinvent Polaroid so it lives on for the next 30 to 40 years," said Tom Beaudoin, the firm's president and chief financial officer.

Industry analysts claim Polaroid has suffered greatly by its refusal to embrace the digital technology that has transformed photography.

Instead, executives stuck to the belief that many photographers would want to be able to hold their developed pictures in their hands rather than view them on a screen.

Global sales of traditional camera film have been dropping by around 30% per year.

"Instant film has been falling as fast if not faster," said Ed Lee, a digital photography analyst at the research firm InfoTrends.

"At some point it was inevitable that it had to reach the point where it was going to be uneconomical to keep producing instant film."

Polaroid, which is privately owned, has always refused to disclose financial details about its instant film business.

The announcement has already led sales of Polaroid products to rocket in the US.

"My shelves are completely empty of instant film," said Jeff Newman, who runs Calumet Photographic in Cambridge.

"Polaroid enthusiasts are panicking and are bulk-buying all the stock that we have."

Edward Nute who runs a photography firm in Plymouth, and still occasionally uses Polaroid films for commercial shoots, felt the technology would be missed by many of his colleagues.

He said: "There's something exciting about peeling back a Polaroid photo and seeing the photograph develop before your eyes. I'm going to toast Polaroid for all the fond memories tonight."

Such is the popularity of Polaroid, it has earned an enduring place in popular culture. Outkast's 2003 global number one 'Hey Ya!' featured singer Andre 3000 urging people to "Shake it like a Polaroid picture".

Digital Camera Lenses



* Speed. This refers to the maximum aperture of the lens, or the maximum amount of light that the lens takes in. A fast lens let in more light, while the slow lens does not. Fast lenses are designed for dark conditions. The slow lenses, on the other hand, are made for lighter conditions. The maximum aperture is measured in f/stop number. This is a ratio between the size of the lens and the focal length;

* Zoom lens. These lenses give a range variety of focal lengths in just one adjustable lens. However, not all of these lenses have a constant maximum aperture. The ones that have maximum aperture are more expensive.


* Add-on lenses. These are accessories that are made for consumer digital cameras. This is an inexpensive feature that can increase or reduce the built-in focal length of the camera. It can lengthen the telephoto focal length to 300% or decrease the wide-angle focal length to 30%. There are other relative pointers for buying the best lens for your camera. For instance, aspheric lens elements can produce sharp photos. Low-dispersion glass lenses can lessen the possibility of blurry pictures. Also, try to consider the stabilization system of the camera. This also helps in producing very precise images. Always take time to ask yourself what you really want in a new lens. Make sure it will serve its purpose. If you are still not sure, try several lenses, compare the results and then decide.

Find frequently asked questions, basic tutorials, online guide sites and more using the list below:

Whether you're a beginner or expert, this page offers links to help you get quick answers to your digital photography questions.

Imaging Resource
Digital photography tips and FAQs—read help pages on the selection of digital photographic equipment.

Nikon’s Coolpix 101
Want to take better digital pictures? Learn it all here, featuring step-by-step tutorials, hands-on tips and articles, and a user-friendly glossary.

The Digital Camera Resource Page
Offers news, reviews, a buyer’s guide, FAQ, and manufacturers’ links.

MSN Photos
Features tips and tricks, image rescue for everyday photo problems, and checks out the newest digital cameras available.

E-DigitalPhoto.com
Covering the beat and reporting on the latest and greatest gear, techniques, and hardware—includes reviews, workshops, Q&A, and a web directory.

Top Ten Digital Photography Tips
With a little knowledge and a willingness to make an adjustment here and there, you can squeeze big time photos out of the smallest digicam.

TakeGreatPictures.com
A comprehensive guide covering technical tips, weatherproofing one's camera, buyers' guides, related articles, and the photo of the week.

BetterPhoto.com
Teaches photographers how to make better photos. The site features great tips to improve photographic technique, camera comparisons and book reviews, a useful Q&A section, and help with all aspects of digital imaging.

Kodak - All About Digital
Are you new to digital? Do you want to learn more? Here are topics related to digital photography—equipment, editing, printing, and lots mor
e.

Sunday, February 3, 2008

What you will need in digital photography

Digital Camera:

Camera Lenses:

Definition

Digital photography is a form of photography that uses digital technology to make digital images of subjects. These digital images can be displayed, printed, stored, manipulated and archived using digital and computer techniques, without chemical processing.

Advantages of consumer digital cameras

The advantages of digital photography:
  • Instant preview of pictures.
  • Permanent storage of digital files are more cheaper and secure if you have a computer of your own.
  • Photos can be copied and transferred from one digital medium to another.
  • Photos can be manipulated and printed on a computer at the same time.
  • Ability to capture and store hundreds of photographs.
  • Ability to change ISO speed settings more conveniently in the middle of shooting, for example when the weather changes from bright sunlight to cloudy. In film photography, film must be unloaded and new film with desired ISO speed loaded.

Disadvantages of digital cameras

  • Dependence upon spare batteries which are heavy to carry and whose lack makes equipment unusable. Batteries used by some film cameras are smaller and not drained as quickly.
  • Many digital sensors have less dynamic range than color print film. However, some newer CCDs such as Fuji's Super CCD, which combines diodes of different sensitivity, have improved this issue.
  • When highlights burn out, they burn to white without details, while film cameras retain a reduced level of detail, as discussed above.
  • High ISO image noise manifests as multicolored speckles in digital images, rather than the less-objectionable "grain" of high-ISO film. While this speckling can be removed by noise-reduction software, either in-camera or on a computer, this can have a detrimental effect on image quality as fine detail may be lost in the process