Wyoming

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Wyoming, WY

The State of Wyoming is a state in the western region of the United States of America.

The easternmost section of the state is a region known as the High Plains due to its altitude above sea level, while the majority of the state is dominated by the mountain ranges and rangelands of the Rocky Mountain West. Wyoming is the least populous U.S. state.

The United States Census Bureau estimates that the state population was 515,004 in 2006, a 4.3% increase since 2000.

The capital and the most populous city of Wyoming is Cheyenne. Residents of Wyoming are known as Wyomingites.

Geography

Wyoming is bordered on the north by Montana, on the east by South Dakota and Nebraska, on the south by Colorado, on the southwest by Utah, and on the west by Idaho.

It is the tenth largest state in the United States in total area, containing 97,818 square miles (253,348 kmē) and is made up of 23 counties.

From the north border to the south border it is 276 miles (444 km); and from the east to the west border is 375 miles (603 km). The Great Plains meet the Rocky Mountains in Wyoming.

The state is a great plateau broken by a number of mountain ranges. In the northwest are the Absaroka, Owl Creek, Gros Ventre, Wind River and the Teton ranges.

 

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Wyoming".

Understanding Exposure metering

by Sean Jordan

Exposure metering . Many cameras these days have exposure meters built into them and this can be a great convenience. On the whole they are a reliable guide, but there are subjects of an unusual nature that call for some variation from the indicated figure. Suffice to say that it is desirable not to follow a built-in meter blindly but to regard it as a convenient guide rather than an infallible pointer.

On some cameras the meter merely gives an indication of the exposure required and the aperture and/or shutter speeds are set by hand to correspond. On more advanced models a pointer activated by the exposure meter is visible in the viewfinder and one turns the aperture ring or shutter speed dial until another pointer coincides with it, at which point exposure will be correct for an average subject.

On so-called automatic cameras the user merely sets the shutter speed he wants to use and the meter itself opens or closes the aperture to the stop that will give accurate exposure on an average subject. With the introduction of shutters operated electronically instead of by a train of mechanical reaction, it has been possible to make cameras on which the user sets the aperture he desires and the exposure meter adjusts to the shutter speed accordingly. All of the latter are single-lens-reflex cameras and, since they measure the light coming through the lens itself, they are often called TTL (through-the-lens) to distinguish them from other SLR (single-lens-reflex)

However, automation has become quite common on ordinary non-reflex miniature cameras as well. They usually have a sensing cell situated on or near the lens mount so that it measures the light direct from the scene instead of from behind the lens. Such cameras are quite reliable if adjustments are made when faced with the unusual circumstances described on exposure calculation. It is most desirable when selecting a camera of this type to ensure that it has a manual override to cope with such instances. Provision is made on all cameras with integrated exposure meters to make the necessary adjustments for different speeds.

About the Author

I love to write articles on subjects on photography, I also enjoy reviewing products, enjoy my latest reviews on what you need to know about choosing a butterfly curtains and a kitchen cafe curtains for your home.

 

 

 

 

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