What is the meaning of the VR on the camera?
The camera's safety shutter is based on the countdown of the lens focal length, such as the focal length of 50mm, the safe shutter is 1 / 50s, if less than the shutter speed, in theory, it is easier to produce jitter. From this point we can understand that the longer the focal length, then the shorter the safety shutter, if the telephoto lens focal length to 300mm, its safe shutter is 1 / 300s, if the shooting conditions are not ideal lighting conditions, then very Difficult to reach the safe shutter, hand-held shooting jitter is difficult to avoid. VR damping technology can reduce the shutter speed of 2-3 files, so more conducive to the light conditions are not ideal at the same time can not use a tripod and other equipment in the case of shooting clear photos. So compared to professional high-end SLR lens, in the home digital camera popular VR anti-shake technology seems urgent. Especially in the telephoto digital camera, anti-shake function becomes more important. Anti-shake generation (VR) and the second generation (VR II), generation can reduce the three shutter, such as 50mm lens, do not open VR to have 1 / 60 to clear, open the VR generation, down three shutter, that is, 1/15 seconds can be clearly shot, the second generation down four shutter, cheap lens only VR switch, a little better lens mode selection, a normal mode , A chase mode, suitable for making animals, cars and so on.
VR (Vibration Reduction) Camera Anti-Shake Technology is an optical technology that improves image blurring due to camera vibrations and allows you to shoot quickly when you lower the shutter speed by three steps, allowing you to take clear pictures with telephoto lenses. When the photographer shoots the moving object, the system will even automatically detect the movement of the camera, VR operation can only be carried out in the newer Nikon camera. Today, the Nikon VR anti-shake system and Canon IS image stabilization system by many consumers that the world's first development, the most influential two optical anti-shake system. Not only was a large number of professional SLR lens, but also often in the consumer level digital camera to see its shadow. Which also laid the Nikon VR anti-shake system in the field of optical image stabilization in the professional status. Nikon VR anti-shake principle and Canon's IS image stabilization system is basically the same, are the use of the lens in the floating lens to correct ldquo; optical axis offset rdquo ;, by the detection part, compensation vibration lens group and drive control part, In the electronic damping system to detect the slight vibration of the lens, real-time correction of the lens inside the lens position, effectively reduce the external vibration on the impact of the final camera imaging. Nikon VR anti-shake system can reduce the safety shutter to the third gear.
VR (Virtual Reality, that is, virtual reality, referred to as VR), by the United States VPL company founder Lanier (Jaron Lanier) in the early 80s put forward.
The specific content is: the comprehensive use of computer graphics systems and a variety of real and control interface equipment, generated in the computer, interactive three-dimensional environment to provide immersive feeling of technology. Among them, the computer-generated, interactive three-dimensional environment to become a virtual environment (ie Virtual Environment, referred to as VE). Virtual reality technology to achieve the carrier is a virtual reality simulation platform, namely (Virtual Reality Platform, referred to as VRP).
