sevenoak

　　The earliest viewfinder is based on the flat viewfinder, the disadvantage of this approach is that in the composition can not view the real-time effects of the screen. And after the viewfinder is based on the development and improvement of it. 　　In fact, on a previous camera, a viewing system called Newton viewfinder was used, consisting of a negative lens (also known as a concave lens) and a frame. In the early 20th century, people added a positive lens or an equivalent positive lens to the eyepiece on the basis of the Newton viewfinder to form the inverse Galileo viewfinder. The reason why it is called Galileo Viewfinder is that it is the prototype of the paraxial viewfinder when it is found that the Galileo telescope can be used in reverse to see the bright and narrow scene images. 　　 Shoulder support Camera Rig SK-R01 　　Sevenoak SK-R01 is a highly compact shoulder support camera rig designed for stabilizing lightweight SLR cameras and camcorders weighing up to 10...