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FEATURED WEB TUTORIAL: LENS
 

Testing Wide Angle Lenses

Published by:  Vivid Light Photography
Tutorial Preview:

So you've decided to take the plunge on a super-wide lens. But you've done enough reading to know that not all of these lenses are created equal. Some provide sharp clear images and others distort reality more than a congressman.

How do you know what you're getting? You can read reviews and see what they say about the lens if you're looking at new lenses. But those reviews sometimes leave a bit to be desired, and they're not even an option if you're looking at a used lens. The good news is that there's a simple way to get a feeling for how much a lens distorts. It's called the brick test - and it will take longer to read this article than to do the test.

The type of distortion that you're most likely to see in a wide-angle lens is rectilinear distortion. Rectilinear distortion simply means that straight lines aren't recorded as straight lines by the lens but rather they curve across the image. ...
ADDITIONAL WEB TUTORIALS: LENS
 
Performing Your Own Lens Test by Bob Atkins
There aren't many easy ways for a user to do their own lens testing without getting into a lot of scientific detail. Some people want the detail,
Using Telephoto Lenses by About.com
Lenses that give a narrower angle of view than a standard lens are called telephoto lenses, though strictly speaking this is a particular way
Understanding Camera Lens Flare by Cambridgeincolour
"Lens flare is created when non-image forming light enters the lens and subsequently hits the camera's film or digital sensor. This often appears
Understanding Camera Lenses: Focal Length & Aperture by Cambridgeincolour
"Understanding camera lenses can help add more creative control to digital photography. Choosing the right lens for the task can become a complex
Using Tilt/Shift Lenses by Photo.net
This lesson will teach you how to use Tilt/Shift Lenses.

How to Take Bad Pictures
"Simple formula for poor pictures:

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