Interchangeable lenses are lenses that can be attached to a camera and substituted with other lenses. While fixed lenses are built into cameras, interchangeable lenses give the user a wider choice of shooting capabilities.
If you bought your camera from a local store, it is likely to come with a lens or two. The fact is that the standard kit lens is merely a basic model. While it does the job, it barely reveals the full potential of the camera. Unfortunately, many camera consumers just stick to their inbuilt lens; they don’t know there are hundreds of options. Many of the interchangeable lenses are prices thousands of dollar because they are created for professional photographers. However, there are reasonable options for the regular user.
The inbuilt lens that comes with a camera offers decent image quality but with some flaws. First, they have a variable aperture, which makes your lens slower as you zoom in. You can recognize a lens with variable aperture when you see specs like f/3.5-5.6. Variable aperture can present problem of inadequate exposure in difficult lighting scenarios.
If you have been thinking about upgrading your lens, you should have it in mind that there are numerous categories to choose from. Lenses can be classified into six categories; telephoto zoom, regular zoom, macro wide angle, specialty and prime lenses. In this post, you will have a general knowledge about each lens type and decide which of the lens you should add to your collection.
Here is a quick view of the various type of interchangeable lenses camera lenses.
Standard Zoom Lenses
The lens that comes with your camera is likely to be a standard (regular) zoom lens. The standard zoom range of a zoom lens is either 18-55mm or 28-70mm. This is a good starting point if you want to upgrade your inbuilt lens. You can get a standard zoom with a constant f/2.8 aperture for $400-$500. Does it sound expensive? It’s an asset worth investing your money on. It offers a drastic improvement in the photo quality compared to the normal kit lens.
Wide Angle Lenses
Wide angle lenses have focal lengths that allow a maximum field of view. If you own a camera having an APS-C sensor, it increases the magnification of your lens from 1.2 to 1-6 tunes, depending on the sensor. Which means if your lens focal length is 28mm, it will effectively transform to a 42mm lens on an APS-C sensor camera. The focal length of wide angle lenses is typically between 10-24mm.
Prime lenses offer greater optical optimization than zooms and are faster. When a lens is fast, it means it has a wider maximum aperture, such as f/1.4 or 1.8. It allows more light and let you shoot situations where there is poor lighting without using a flash. They are also lighter and smaller than zoom lenses, which makes offers portability and greater ease when shooting.
There are lenses specifically made for portraiture and wedding photography, sports, photojournalism, macro photography, architecture with the list being endless. Although some lenses serve multiple functions, they can not be considered “general purpose” lenses.