The first thing you need to decide to buy or which provides for the use of a goal if you want a zoom or a goal. It is an objective to a single fixed focal length. Zoom May look the obvious choice for many, as well as all the different focal lengths to cover in a single goal. It is very flexible and you do not have to carry extra lenses and spend time with a one goal to another. You want to capture great landscape? Zoom out and click. You want someone to capture the facial expression? And click Zoom. These are certainly great advantages compared to the first goal, where are you taking with the same focal length. But first, the lenses are also benefits. In general, are smaller, faster, cheaper, cleaner, less distorted and are less prone to deterioration zooms. Suddenly, to take into account, is not it? Let us take a closer look at first.
A fast lens, you say?
Prime lenses do not use the number of elements (glass plates), within them, such as zoom lenses. E 'questa la chiave, are simple and, consequently, the smaller buildings and less expensive. Now what is the first to be fast? It is still a piece of glass, right? This is not a race car! Well, when we talk of photographers to the goal of being fast, it is a bit of nonsense. What must be said is that the lens has a large opening that allows more light to pass through the goal, allowing the camera to the proper exposure of nails faster. It is just easier to say that "the objective is fast! . Using one of these "fast lens offers some possibilities. You can freeze and easier to quickly grasp the situation (large aperture and shutter speed for short) and it may be easier to keep their hands on pictures in low light conditions (greater openness and speed of 'closures). Suffice it to note that when using a large aperture, the zone of sharpness (depth of field "), becomes smaller. Things in front of a line of your focus will be blurred. But this is not necessarily a bad thing, however, can help draw attention to the main subject of the image and away from background clutter. The greater openness and greater focal length used, the smallest of your fire will be.
But back to the first single-lens construction, the other advantages I mentioned above have their superior sharpness and less distortion. In particular, the sharpness can be useful if you intend to submit photos to a stock agency. Sale of 10 to 20 Mega-pixel image requires good performance of your goal.
And finally, why not zooms first, there is less of a thing that can break!
The choice between the first and the zoom is not always so simple. In addition, some people think that only the focal length of the first limit, while others find the release of a thing under that. Personally, I use the zoom and the first time. When you're in a situation that is evolving rapidly, with all the things going on around me, I prefer the flexibility of the zoom. But when I go on a shooting with a particular phrase in mind, I prefer the wide and long first goal.
The author, Morten Svenningsen, is an award-winning Danish photojournalist in Nepal, Asia. Visit his web site www.mortensvenningsen.com to see examples of his work. It’s now even possible to order his photos as fine art prints and posters!
