http://www.nikonchat.com/nikon-f2-8-200mm/
What lens should I get for my DSLR?
One of the most important advantages of digital SLRs (ie, semi-professional and professional) is the ability to use different lenses. But deciding what to buy and what objective lens is suitable for a specific type of photography is a bit difficult. In this article we learned about the advantages and the main purpose of using specific types of lenses, with the hope that we make it easy for you decide.
Let's take a look at the different types of lenses and learn when they are used.
Prime and Zoom Lenses: A fixed focal length lens is called a prime lens. This is the opposite of zoom lenses with different focal length. As the focal length is fixed, in order to compose a photo that will be necessary to adjust the distance to the site to have specific people or objects in the picture. In zoom lenses, which will use the zoom to compose the picture in Instead of changing the distance from the camera to the scene.
Prime lenses have a build simpler than zoom lenses and can be designed to have performs much better sharpness and quality than zoom lenses. Zoom lenses typically show the different types of errors at different focal lengths, while the main lenses have the least amount of such mistakes. Prime lenses are very compact and much smaller than other lenses. Its price is cheaper than other types of lenses in a aperture size of equality. You can buy a 50mm f/1.8 lens Canon or Nikon for about $ 100, while a zoom lens with the aperture size itself could cost more than $ 1,000.
Opening Size: Larger aperture sizes (ie smaller f number) and f/1.4, f / 1.8 f / 2 provide more light to the camera sensor and therefore are more light (photo can be taken at a faster shutter speed). However, the Zoom lenses with a size larger opening can be incredibly expensive. F-number is calculated by dividing the focal length and aperture diameter. As an example, if the size of opening (ie aperture window) 50mm lens set to the number f = 6.25mm is 50mm/6.25mm 8 meaning that this opening size, lens is set at f / 8.
Normal First objective: a lens viewing (ie with a fixed focal point) with a focal length 50mm lens is called a normal. Photos taken with a 50mm lens appear to be similar to what our eyes see on the site (point of view, angles etc.). Canon, Nikon and some DSLR brands as mentioned in the previous section, selling normal size lens aperture f/1.8 or better (like f/1.4) with a cheap price. A normal f/1.8 lens is suitable for relatively low light conditions and produces sharp, brilliant photos.
Short Zoom lenses: Zoom lenses covering the range of 50-60mm can be considered in this category. Examples of these lenses are 35-70mm f/3.4-4.5 and 28-70mm f/3.5-4.5 lens. Today some Canon and nikon models are offered with a cheap 18-55mm f/3.5-4.5 lens. These lenses can be considered short zoom lenses, while also provide a variety of wide and super.
Super zoom lenses: These are the types that cover a wide range super. Super zoom and a lens cover 18-200mm wide angle and the lengths TV focus.
However, the most important feature of these lenses is its ability to avoid changing the lens. These lenses can offer almost all lengths focal needs and therefore sometimes referred to as "walking around lens." If convenience is not an issue for you, we recommend using more than one lens that has a better performance in a smaller size range of coordination.
Wide-angle and ultra wide-angle lenses, lenses with a focal length of 21mm to 35 mm are usually called wide-angle lenses. Lenses with a focal length less than 21 mm are called ultra-wide angle lenses. These lenses can be prime or variable focal length lenses the (zoom). wide-angle prime lenses have better aperture sizes (in the range of f/1.4 to f2.8) to wide-angle zoom (opening f/3.5-f/4.5 sizes most of the time). Again, the zoom types provide flexibility while lenses provide sharper pictures first, a price cheaper and larger the size of the aperture (ie, better pictures in low light conditions). There are also zoom lenses just cover a wide range and super. These include 21-35mm 18-28mm lens.
The wide coverage angle is also one of the benefits of the range and super range lenses. An ultra wide lens sometimes can capture up to an angle of 90 degrees or more.
Large and ultra wide-typically have perspective distortion. This type of distortion causes next images to be photographed much larger than distant objects. These lenses are suitable for taking pictures inside buildings, street photography and so on.
If all firing inside buildings, a lens that covers focal lengths of 28 mm or less will be suitable. This type of lens lets you capture a considerable angle in a scene without the need for a great distance to the subject (s). However, if you shoot portraits and nature, a wider lens will more useful. In these cases, a goal of 35-135mm is very good.
Long Telephoto: Lenses with a focal length of 135 mm or more, are normally considered as long telephoto lenses. TVs, which have different focal length are called telephoto zoom while those with a fixed focal lengths are called telephoto lenses. You can easily find 55-200mm 55-250mm, 70-300mm telephoto zoom and similar for most brands of DSLRs. However due to the wide range of the lens and complicated design, with different focal lengths of lenses may show different errors and quality. These lenses typically have a lower yield than other lenses short and fixed focal length telephoto lenses. A 200mm telephoto lens is a prime example of non-telephoto zoom lenses.
Medium telephoto lenses: Lenses focal length range of 85-135mm is sometimes referred to as portrait lenses. This is due to perspective distortion is low and an adequate distance between the individual subject and chamber can be maintained. Many telephoto zoom lenses can be used in this range, but are heavier, bigger and their size is less than maximum aperture lenses first. However, if you shoot a lot of pictures, prefer to use telephoto lenses as the first half with a focal length of 85 mm and 105 mm between the maximum size aperture of f / 2. First medium telephoto lenses have less chance of error perspective and as previously mentioned image quality is sharper and brighter and larger lenses main opening size are cheaper than zoom lenses with the same maximum size opening.
Macro Lenses: Macro lenses are designed to provide the very high magnification and also very short distances of approach. In the normal zoom lens minimum focusing distance (Ie, the distance between the lens and the object) is usually greater than 30 cm. This distance is a few inches of macro lenses so you can take pictures from a distance shorter and has a very sharp and detailed picture of a very small (like a small flower or a bee).
About the Author
Mac Sarmady writes for Society50 social networking website. You can visit Photography Club of Society50 to ask your questions or just to get advise on any photography issue.
Tamron 70-200mm f2.8 nikon d40x
Nikon News