While an ordinary cheap "soap dish" can be enough for an amateur photographer to create photographs, then a professional photographer cannot do without good equipment. High-quality cameras usually have interchangeable lenses, which you need to be able to choose.
Instructions
Step 1
The quality of the resulting image largely depends on the parameters of the optics used. To choose the right one, you need to have an understanding of the main characteristics of the lens.
Step 2
When buying a camera with a quality lens, pay attention to the possibility of replacing it. Do not use cameras with a fixed lens. Modern cameras use a bayonet mount that allows you to change them in a matter of seconds.
Step 3
Start your lens selection by searching online for information on which interchangeable lenses are recommended by the manufacturer for your camera. With the recommended lenses, you are guaranteed high quality photos. Conversely, even a third-party lens of a suitable mount type may give unsatisfactory results because it has not been tested for compatibility with this camera.
Step 4
When buying optics, be sure to take a camera with you in order to check the quality of the resulting images on the spot. Good photo shops have the ability to display a test photo on a large screen, which allows you to better evaluate the quality of your purchase. Remember that buying from alternative manufacturers, sometimes cost effective, can potentially bring you a lot of problems.
Step 5
Avoid using lenses that require adapters to mount. Not all adapters provide the operation of all lens options, for example, autofocus. In addition, the adapter changes the focal length of the lens, which negatively affects its parameters. Particularly on the focusing range.
Step 6
If a lens made by another company fits your camera without an adapter, this does not mean that it will work. A modern lens is a complex electromechanical device that communicates with a camera using special protocols. If these protocols differ, the lens may not work or will malfunction from time to time.
Step 7
Please note that a zoom lens, with all its advantages, is obviously inferior to a fixed focal length lens in terms of image quality. The presence of interchangeable optics just presupposes its selection for a certain type of shooting. If you want to purchase a quality lens for a specific type of shooting, for example, portrait, then get a portrait lens without zoom. The lack of zoom makes the lens simpler and more reliable, the quality of optical alignment is higher. In addition, its price goes down.
Step 8
An important parameter of the lens is its aperture ratio, or relative aperture, it is indicated by a ratio, for example, 1: 3, 5. The larger it is, the better. For example, a lens with a 1: 2, 8 aperture ratio is better than a 1: 3, 5 lens, but also more expensive. Lens parameters are usually written on the front of the lens barrel, for example, 2, 8/24. This means that the lens is fixed, the relative aperture is 2, 8, and the focal length is 24. In practice, it is rarely possible to take advantage of a lens with a relative aperture higher than 1: 2, 8.
