When shopping for a digital SLR camera people often overlook or skimp on 's lens of the camera. Objectives serve as digital SLR cameras "eye," the lens determines what and how the camera sees your subject and how this thesis is sent to 's camera's sensor chip for recording. The way I like to watch the camera lens is like the brush painter, in broad terms, Stokes media, all purpose brushes, and small detail brushes.There is much to learn about digital slr camera lens, and this article will serve as the background to understand them. The following sections explain the basic types of lens reflex digital camera, how they work and how to select them.
Focal Length
On a digital SLR camera lens focal length measures the distance between the lens and the image sensor, measured in millimeters. The lenses can be classified intosubgroup as the first, macro, wide angle, normal, telephoto, and zoom lenses. They are also rated for f-stop or speed of an example would be a goal or a 1.4F 50mm F2.0 80 mm lens.'ll Explain later in this article.
Prime Lenses:
prime lenses are fixed focal length lenses like a 50mm 1.4f lens. To zoom in with this type of lenses you must use your feet and closer or farther away from the subject. Traditionally, the firstlenses are sharper and faster than zoom lenses. If you're on a budget you can pick up some incredible first used old lenses off eBay or your local photo shop.
Macro Lenses:
Macro lenses are detail brushes that allow you to get up close and personal with the subject. These types of glass are used for extreme close-ups of small objects like daisies, coins, and food, but not limited to these types of subjects. Examples of macro lenses are 50 mm and100mm macro. These lenses are also ideal for the types of selective focus photos.
Wide Objectives:
Wide-angle lenses are your broad brush stroke, these types of lenses have focal lengths. The focal length is the visual effect of "pushing" the subject away from you and making it appear smaller. The beauty of wide-angle lenses is that you can be relatively close to the subject and attach a shot wide of the bottom stage.
One problem withwide-angle lenses is known as convergence, a distortion that makes vertical structures appear to lean toward the center of the frame. One way to check if you are interested in wide-angle, there was convergence is to take pictures of try before you buy the lens. With high-quality lenses such as wide angle lenses Canon L series addressing this issue of convergence well . Examples of wide-angle lenses are 15mm, 17mm lenses, 24mm and 28mm.
Normal lenses:
Slow normal to feelto mimic how the human eye sees and some of the goals are the most versatile you can use. These are my all purpose brushes, and are halfway between a wide angle and a telephoto lens. If you buy just one goal to try and buy the fastest lenses can be normal, like a 50mm 1.4f lens. Some examples of normal lenses are 35mm, 50mm, 65mm and 80 mm a few consider it a normal lens.
Telephoto:
Lenses with focal lengths from 100mm and above are calledtelephoto lenses. A focal length seems to bring the subject closer to you and increases the size of the subject in the frame. Telephoto lenses also give players a look and feel and flatten the subject. These lenses are my brief brush stroke.
Zoom Lenses:
Zoom lenses are special because they can be very versatile. These types of targets vary in their focal lengths and there are many wide-angle, telephoto and wide angle to telephoto. In my bag I carry a17 mm to 35 mm wide-angle off my brush, 24mm to 70mm my medium brush, and a 80 mm to 200mm in my brief brush. With these three lenses I get a very board range of focal lengths for each situation. All my f2.8 zoom are at least through the lens range, which means that my f-stop can remain constant while I'm zooming in and out. These types of lenses are very expensive, but in order to get what you pay for. When shopping for a zoom control ratings range f-stop. An example is a 24 mm to 300mmF3.5-F5.6 lens meaning the lowest f-stop you can 'shooting range is a 24 mm lens, and when you zoom to 200 mm lowest you can go is f5.6. Zoom lenses can give flexibility and versatility in one lens. When purchasing a zoom lens to try to get one that is made of glass and is the fastest you can afford, you will not regret.
Understanding what these different groups of lenses can do will help make more informed decisions on what lenses to buy and whatput in your camera bag.
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