Digtal SLR Lenses...
Getting the perfect shot can be all-important in photography, and there are numerous digital SLR lenses out there to help you achieve you goal. However, how do you decide which is the best lens for you, and what the pros and cons of lenses are? One of the best things you can do to help you decide is research. Read as much information as you can about digital SLR lenses, and do not be afraid to shop around and ask as many questions as possible. Read online reviews where possible and see what real camera users actually think about their SLR digital lenses, and not just what the shops want you to believe so that they can clinch that all important sale.
Digital SLR lenses are brand specific, so first of all you need to have your camera and know what brand it is. This is basically because all manufacturers use their own lens mount technology. You may have heard terms like Pentax lens, which is not going to be the same as if you have a Sony lens and so on, so really your choice of lens is restricted to what is on offer from the company that made your camera. However, that is not going to be a problem as all leading camera manufacturers offer a baffling array of digital SLR lenses. Now having said that, the digital SLR lenses are brand specific. There is also the option of third party lens. These lenses are the none branded goods of the camera world, so are not actually made by any of the leading manufacturers, and each lens pack includes a range of adapters to make the third party lens compatible with any camera. Some of these are very good and they have the advantage of being cheaper than a branded lens to match your camera; however, for some people this just isn't an option and they would rather spend the money on a genuine item, even if it costs a bit more.
One of the key things you need to decide when selecting a digital SLR lens is the focal length that you want to have. That is simply the length between the lens and the focus of the picture. If you have a lens that is just too short for most of your work you are not going to get the pictures you want, and are going to be left with little choice but to change the lens again and cost yourself even more money.
You then need to decide on your maximum aperture, which relates to the amount of light that is able to go through a lens when fully open, and again this is dependant on the light conditions you will be mostly working in. For example a lens that is f-2 is deemed to be a fast lens and this is better for low lighting conditions than a lens that is f-3.5, which is termed to be a slow lens and is better in brighter lighting conditions.