Suspension photography software

We call a lens with a focal length of 50mm a standard lens, and the angle of view of taking photos with a standard lens is similar to that of the human eye (so it is called a standard lens). A lens with a focal length less than 50mm and a large viewing angle is called a wide-angle lens; A lens with a focal length greater than 50mm is called a telephoto lens. Wide-angle lenses are used to shoot big scenes. A telephoto lens is used to shoot distant things (equivalent to seeing things through a telescope). Macro lens is a kind of lens used to shoot close-up details of objects, and the ratio of image to object can reach 1: 1. Many telephoto lenses also have macro function, but the image-to-object ratio is only about 1: 4. Optical anti-shake is an optical device used to correct camera shake. Some brands are placed on the fuselage, and some brands are placed on the lens. With the optical anti-shake device, you can still take clear photos when the camera is slightly shaken. RAW format (ARW of Sony) is a file format generated by directly storing the original image data, which can only be seen through special software. Because it is not compressed, the file is very large (ten times larger than JPEG). However, the raw file retains the original file for post-processing. Cameras with interchangeable lenses are often called SLR cameras. Because the camera and viewfinder use the same lens, the scene seen from the viewfinder is the same (or slightly smaller) as the scene to be photographed. The biggest feature of SLR is the interchangeable lens. When used, it can be changed into wide angle, standard, telephoto, macro and zoom lenses as needed. About buying machines. It depends on the purpose. If it is only used to take pictures on the road, a general digital machine will do. It is light, convenient and economical. If you want to take some high-quality photos in your travel, life and work for exchange and appreciation or as picture material, you need a SLR. If you are a photographer and an enthusiast, buy a professional camera.