วันพุธที่ 20 กรกฎาคม พ.ศ. 2554

The Canon 18-200mm, it's all

The Canon 18-200mm, it's all

The Canon 18-200mm, it's all

Posted: 20 Jul 2011 07:40 AM PDT

If you own a Canon Digital Rebel or Canon digital SLR cameras xxd, has earned the 18-200mm Canon you look.

Its official name is Canon EF-S 18-200mm F3.5-5.6 IS telephoto. Quite nickname, huh? The EF-S designation means specifically for what is known as "culture-sensor" cameras. Although the APS-C scored. So if you are using a Canon 7D or a full-size imagesModels that fit 18-200mm Canon lens not the camera.

The advantages of owning a super-zoom

The obvious main advantage of this property is a super-zoom lenses that stay on your digital SLR camera almost constantly. This is a great advantage for holidays and travel, if you do not want to drag a camera bag or heavy bag across the country.

It 'also great for quick snapshots. It is not necessaryStop and get exactly the right lens for your camera. Many times the shot is long When the configuration is going to take it.

In fact, with slow to change is one of the blessings and the curses of digital SLR owners. We actually buy the camera, so you can change the objective, then we're frustrated that we have.

Training with the advantages of this lens is worth more than some of the speech.

First, as mentioned, the zoom range is 11x.Considering the monumental version of the range, the picture quality is excellent.

In addition, there IS (Image Stabilization), which is for you an additional four stations of the diaphragm, without using a tripod. This is important because the maximum aperture is only f/3.5, and increases from there to a maximum of 5.6. This is typical of the super-zoom lenses Canon or other manufacturers.

Another advantage is the bokeh, which arises when awide opening. The photographers are always comparing bokeh. In short, it's when you get to the main subject of the picture sharp and other areas of the photo in a carefully groped pleasantly blurred. The 18-200 is a good job with that, but not the best.

The last benefit has to do with a comparison to the "kit lens" that Canon supports. Sometimes first-time buyers to purchase the starter 18-55mm 55-250mm and a further slowfor mid-range focal lengths. These two objectives are not bad, with regard to image quality goes, but not the high quality construction.

The Canon 18-200mm lens is much better than lenses made ​​kit.

At the bottom of this page

You can find this true of most super-zoom, be it Canon, Nikon, Sigma, Tamron or lenses. This is a compromise in terms of image quality to get the focal range. Most havebarrel distortion in wide angle and chromatic aberration issues, is the shortest and the longest focal length.

This does not mean that the images are bad – the lens actually produces good images. The problem areas are minimal, and you might not even notice, without either of them to you. But if you are looking for a pixel-perfect image, you need to pay more money or a specific focal length.

FinallyCanon considered a double.

Foreign manufacturers have some very good goals, the Canon digital SLR in the form produced. If the benefits and problem areas are the same, why not save money for one of those? This is a thought.

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