Many digital photography enthusiasts start off with manual focus lenses, as such lenses are typically less expensive.
As the name suggests, using a manual lens means that the photographer must take the time to adjust the shot before taking the photograph. This is, obviously, not ideal for all situations.For instance, if you are considering taking outdoor photos, sports images, or even travel photographs, you will find that you need to be able to shoot fairly quickly. For this reason, you will soon find yourself in the market for a good autofocus lens. With such a lens, you are able to shoot fairly quickly without having to worry about focusing.First, take the time to think about why you need an autofocus lens. Keep in mind that the faster the speed, the more expensive the lens. Hence, if you are thinking of taking photos while traveling, you only need a moderately quick lens. But if you are thinking of shooting fast moving objects (like racing cars), you may need to invest in a really good and fast pair of lens.The price of the product is also affected by other factors:1) Brand: Popular brands tend to be less expensive as there is wide spread adoption of the technology. However, this is not always the case. So it's wise to keep your options open. No need to be in such a hurry to buy such an expensive piece of equipment. The market leaders are currently Canon and Nikon.2) Special features: The price is also largely determined by the overall quality of the lens. Your ultimate goal is to be able to take high quality photos. A high quality lens promises a high quality output. For instance, some lenses come with a special coating that enhances light efficiency. Such features ensure that the digital images are of the highest quality.Here are more buying tips:Tip 1: Read user reviews. As the lenses are quite expensive, it's always useful to read what others have to say AFTER using them with their own digital cameras. User reviews are publicly published at Amazon, digital photography blogs and forums, as well as on Yahoo discussion groups.Tip 2: Pay attention to sensor technology. Autofocus is only possible due to a sophisticated system of sensors, prisms and mirrors in the lens. Read more about how such systems work, and that will help you choose the best system.Tip 3: Expensive doesn't mean it's the best. Due to the wide range of choices available, a mid range lens may sometimes be a better choice (depending on your personal needs).Tip 4: Since a piece of lens can cost a small fortune, it's wise to make an effort to protect the equipment. Buy screen guards and learn how to protect the lenses and they will serve you well for a very long time.
