The resolution of the camera lens while zooming
Zooming is an important part of photography. You can see more details of something that is far away if you focus your lens on it. This is the power of zooming. On the other hand, a good resolution helps you to see the fine details of an image that is both near and/or far. Therefore, you need to decide what kind of camera lens you want depending on these two aspects of photography. For example, you can get a prime lens that has great resolution but is unable to zoom in on an image or you can decide to go for a zoom camera lens. The zoom camera lens does not require any lens shifting when taking photos either near or far away.
The Focal Length of the Camera LensDifferent focal lengths will give you different results. This is especially true when you are covering different kinds of scenes. In other words, a camera lens of a given focal length with give you different results when you are cover two different scenes. For instance, do not expect the same quality when you use a camera lens to capture images from intensely close events such as sports games and when you use it to cover scenic, long distance events such as two rhinos running away from you while you are on safari. You therefore need to use focal length modifiers. You can choose focal length modifiers such as telephoto lenses or broad focal lenses.
The Aperture of the camera lens
You can choose between a small aperture lens and a wide aperture lens. A wide aperture lens enables you to capture more light for each move of the single shutter in your camera. On the other hand, a small aperture camera lens is ideal for outdoor photography where you need to screen a little of the additional light that exists.
The Brand of the camera lensThis may seem like a petty thing to look at but it is actually very important. You should only go for recognized brands that have a good reputation when it comes to delivering camera lenses that last for long and are of good quality. Buying relatively new brands of camera lenses is extremely risky. You may buy a faulty camera lens or end up buying a camera lens that will only last for a short while. However, all of this depends on what you need. Each brand has its own strengths and weaknesses. You should therefore look at the strengths and weaknesses of each brand before you make your decision.
These are just some of the things that you need to consider while choosing a camera lens. Another factor to consider is the cost of the camera lens. Do not buy camera lenses that you cannot afford. Work within you budget.