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Understanding focal lengh

Posted by www.nikonusa.com on Friday, March 15, 2013, In : Focal Length 
Article by www.nikonusa.com
 
Focal length, usually represented in millimeters (mm), is the basic description of a photographic lens. It is not a measurement of the actual length of a lens, but a calculation of an optical distance from the point where light rays converge to form a sharp image of an object to the digital sensor or 35mm film at the focal plane in the camera.
The focal length tells us the angle of view—how much of the scene will be captured—and the magnification—how lar...

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About Me


Joe Lategan I am a extreme lover of the "creation", and hater of destruction thereof. Photography allows me to share in a deeper dimension than words with fellow men/women, my feelings in this regard. I am a inspirational speaker on the sustainability of the environment and and creation. On the other hand I present, consult and drive Cost leadership programs (including Disaster/ emergency preparedness and systems analysis,risk and ethics) for corporations