What are the fixed-focus lenses commonly used in photography?

The choice of the most commonly used lens for SLR cameras depends on your favorite photographic subject and economic conditions. Different photographic subjects, such as landscapes, portraits, ecological flowers, etc. There are different requirements for the focal length and maximum aperture of commonly used lenses. Different subjects you like, the commonly used lenses will be different. Moreover, the better the lens quality, the more expensive it is, and the price difference is very wide. Which one to choose depends on your own economic conditions. There are so many kinds of SLR lenses to meet the different needs of different people. No lens is the best lens that can meet everyone's needs, or a universal lens suitable for shooting anything.

For general use, or beginners in photography, it is recommended to use the lens sleeve of a SLR camera as an ordinary lens. The focal length of the lens sleeve is mostly in the range from wide angle to standard focal length (mostly between 18- 135mm), which can meet the needs of most ordinary photography. It is cheap and good, but the picture quality is average. If you shoot more, you will be familiar with it, and you will have your own hobbies in shooting subjects. At that time, I also knew what the best lens was.

For those with high quality and economic conditions, you can choose a good lens. In Canon, it is a lens with a red circle (lens model with L). When choosing zoom lens or fixed focus lens, both have their own advantages and disadvantages. Zoom lenses are easier to use, but fixed-focus lenses at the same price have better image quality and maximum aperture. Those who like to take portraits can be equipped with a large aperture fixed focus lens. Focus 35, 50, 85, depending on their shooting habits; There is a good macro lens that loves ecological flower photography. The commonly used focal length is about 100mm, usually called100 mm; In landscape photography, wide-angle and telephoto zoom lenses are essential, and generally wide-angle zoom lenses are used more; Economic conditions permit, we can choose big ternary and small ternary to form a relatively complete commonly used focal lens group.