If you have a fixed lens? Every DSLR owner should have at least one fixed focal length camera in their bag quickly. Zoom are important, and can reduce weight and cost. If the situation warrants, but a good basic lens, a photographer friend to be better. The following article explains the type of lens and in many ways a fixed length lens photography can enhance your well.
Not long ago,Photographer way to avoid zoom. -Focal length lenses were known as main contractor, faster, easier and less expensive. More importantly, the prime lenses offer clarity and image quality.
Fortunately, managers have considerably improved zoom lens so that their image quality is almost on par with fixed focal length, hitting has been a true blessing for photographers replaced, perhapsbag full of lenses with a zoom lens or two. If the image quality was the only criterion, the majority of photographers are not easy, with some nice zoom. Of course, there is more to the selection of targets such as image quality, and there are many situations where a fixed focal length is always a better choice.
Speed
It is usually easier and cheaper to build one fast lens focal length, zoom, and a line some 'low-light qualityFixed focal length. Prime lenses maximum aperture of f / 1.8 or more are not uncommon. In contrast, zooming in early FY / 4 or more. Even the best, most expensive zoom rarely exceed a maximum aperture of more than 2.8. The premium is high brightness good can make a big difference when shooting in available light or at night to do. Although you can ramp up the ISO the more light zoom capability to pull But SunCreate ISO quality problems. If the available light is low, and you do not release a flash, fixed focal length, you can save the day.
Image Quality
I said I have reached parity with fixed focal length zoom. In general, the optical requirements for the establishment of a fixed focal length range are well understood, while the engineering need to zoom in longitude excellent results over the entire focal length Range. Although there are some really good zoom on the market, many are better than some other zoom. Photographers talk about the sweet spot - the zoom range, where a zoom lens offers the best performance. In other focal length, sharpness and contrast can suffer. Again, this is not all zoom, but usually it is much easier to design a great first goal that the design is a truly exceptional Zoom> Lens. So the first big lenses are plentiful, while the super zoom rare (and expensive!)
Size and weight
Typically, the fixed focal length is much smaller and lighter than a zoom. The internal zoom requires several elements, and must be different for a mechanism to move these items, more or father at all. In addition, the zoom-in designs are large and rapid global integration of optics to collect moreLight. Consequently, a quick zoom is usually much larger and heavier than a fixed focal length. This is important if you are walking device easy to use, you want the digital SLR. Discrete fixed-focus, it is easier to detect, even for snapshots, the objective is much less visible than the big zoom.
Costs
A lens quality is more expensive than aa fixed focal length, even if the additional cost is moreoffset by the fact that only a long zoom lens can take the place of some fixed focus. However, considering the price is important, especially if you're looking for a very wide or very long lens. For example, the 300mm fixed focal length is generally much cheaper than a good zoom has a focal length of 300mm.
Fast autofocus
There are many targets on the market it is difficult to coverStatement about the rate of the first autofocus lenses over zoom. However, the lenses seem to focus first ran faster than their cousins adjustable focal length. Some of this aspect, the speed is the speed with which the lens allows more light to focus more quickly. Additional items in a zoom lens can also focus on speed. When the situation calls for fast autofocusing, you can use a fixed focal length is betterChoice.
There is always room for a small fixed focal length
When packing for the award of a picture, usually filter my pocket lens to reduce the weight and any adjustments in my small way. The big zoom is usually the first cut, unless I know that I'll need to shoot. However, my prime lenses take so little space that usually take about one or two cases in the camera just in case. If I need to aim, I'm glad I brought,but if I do not use it, I do not think it was a weight has been a long time.
You can change your goal every time you shoot, but you will notice that the prime lenses offer many advantages so that the premiums you would have with one or two, if you go with the camera.
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