Are you new to lenses?

Check out this introductory guide.

Photodo is the place to be to find out about lenses. If you already know about lenses and have an idea what you're looking for go straight to their lens search facility or reviews .

Learn about

FOCAL LENGTH
Lens focal lengths explained.
Click here to view their focal length comparison table.

FOCAL LENGTH EQUIVALENTS
Check out their comparison table from digital sensor to 5x4 large format.

LENS TYPES
From fisheye to super telephoto...the lenses and their uses are explained here.

ANGLE-OF-VIEW
What it means and why it’s important here.

WHICH LENS
Should you buy an independent lens or manufacturer’s own? Is a prime or zoom lens the best? Find out here.

APERTURE
The aperture is one of the most important controls in photography.
Find out why here.

DEPTH-OF-FIELD
Understanding this feature will help you improve your skills.

Picture of the day:

Seasons

Hand painted christmas Ornaments

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Tips and Techniques to Protect Images on the Internet

Protecting Images - Put plain and simple: the only way to protect your images from being downloaded or stolen off the internet is to not put them online in the first place. While I put this fact out there as blunt as possible, there are several image protection techniques we can use to make website downloads and image theft much harder. Of course, image theft can be defined in a number of ways, and its definition - and hence measures (if any) taken to prevent it - will depend upon the individual.
There are many ways to protect images, ranging from modifying the image itself (tips 1-3), to preventing webpages downloads (tips 4-8), to being pro-active in finding unauthorized usage of images online (tips 9-10). And while I discuss many common types of image protection, there are likely many others that I do not mention. A few of the techniques mentioned in this article are directed more towards individuals with both their own webpage and a knowledge in website design (these tips are marked with an *), several can be used for image protection on photo sharing website's such as smugmug, flickr, pbase, and webshots.

Please click over to Greg Cope's article at Nature Focused about Website Image Protection

Greg also provides links to other Resources on Image Protection:
US Library of Congress - United States Copyright office for copyright registration.
Stolen Content - Content protection and what to do in case of theft.
Wildlifephoto - Jan Allinder's article on Image Protection.
Nature Photographers.net - Protecting images on the web.
Greg also provides very useful information about Copyright
e.g.
A copyright is a form of protection provided by law that prevents the use of a piece of work, and the copyright owner the person who originally created that work (please visit the United States Copyright Office for more information). In almost every case, if you push the shutter button you hold the copyright. However, it is always advisable to register a copyright of your images with the United States Library of Congress or a similar entity in the country where you reside. While this will not prevent images from being downloaded and/or stolen, it will give you proof that you are the copyright owner. Registering is easy, cheap, and can be done in batch (eg you can register several images, such as "Photographic Works of - First Quarter, 2008").
There is no international copyright law which provides immediate protection for an artist against unauthorized usage: however most countries have copyright laws that pertain in that country. Protection is also provided internationally through the Berne Union for the Protection of Literary and Artistic Property (Berne Convention) and the Universal Copyright Convention (UCC). For more information on international copyright laws, please visit the US Copyright Office International Copyright webpage.

and much more.
Very useful ... check it out.

Picture of the day:

Wildlife

Lizard enjoying the heat

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Burt Glinn dies

Burt Glinn, a photojournalist whose images of historic moments of the Cold War include Fidel Castro's 1959 march on Havana and Nikita Khrushchev's visit to the U.S. that year, has died. He was 82.
Glinn, who lived in East Hampton, died Wednesday, according to Magnum Photos Inc. The cause of death was not immediately given.

Read a short biography about Burt Glinn at http://www.macon.com/nation//story/321786.html
and take a look at his
Magnum Photos

Photo of the day:

Seasons: Winter

Wayside Shrine in Munich, Germany

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