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Photography A - Z the Easy Way: Z - Zoom Lenses

What is a zoom lens and why should you use one?

Until fairly recently, when you bought a camera it would most likely have come with a “fixed focal length” lens. This means, basically, that the magnification it gave was the same and could not be changed (or, if it could, it would be fairly crude).

This was fine for most simple situations and served as an “optimum” magnification to be able to take standard shots.

But, if you wanted to get nearer to a subject, you had to use your feet or had to buy an additional “telephoto lens”. This would magnify the subject so that you appeared closer than you actually were.

Similarly, if you wanted to see the wider aspect of your subject, you would have had to step back or get a “wide-angle lens”. This would make your subject look further away than it really was.

Zoom lenses were developed to be able to change the magnification by using simple controls on the lens. A telephoto (or long) zoom would typically magnify the subject, as you saw it, from normal to larger – in this way you could appear closer to the action. A wide-angle (or short) zoom would move you back from your subject – in this way you could appear more distant from your subject and see a wider view.

With both types of lenses, you could choose all the steps of magnification in between.

Now virtually all cameras come equipped with a zoom lens – this includes compacts and cameras for the more serious-minded. These zooms are typically a compromise and incorporate both wider angle and short telephoto setting and are usually of very reasonable quality.

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Digital Flash Photography News

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The next digital image revolution?

Despite the explosive innovation around digital picture-taking, the end result has actually changed very little. A photo is still a photo. And a poorly focused photo is still as bad as ever. Ren Ng aims to fix that.

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PENTAX Introduces New K-30 Digital SLR Camera

Featuring weather resistant capabilities, new mid-level DSLR is the perfect creative companion for active travel and outdoor photographersDenver, CO (PRWEB) May 21, 2012 PENTAX RICOH IMAGING AMERICAS CORPORATION today announces the introduction of its new weather and dust resistant digital SLR camera – the PENTAX K-30. ...

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Who You Lookin' at?! Zeta Digital Agency Launches Brand New 'Stalker' Secret Photo Spy App for iPhone

LONDON, May 16, 2012 /PRNewswire/ --A brand new app has just been unleashed on the Apple app store.  Stalker is set to bring sleuth-like spy photography and iPhoneography to streets, tube stations and ...

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Advanced photography, Photoshop courses offered at SRC Outreach Center in Canton

Spoon River College has several upcoming classes for those interested in photography: Advanced SLR Digital Photography, Photo Sharing, and Adobe Photoshop. The courses will be held at the SRC Canton Community Outreach Center, 45 E. Side Square, Suite 302.

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