There is a contradiction between powerful zoom and good image quality: powerful zoom must cover everything from telephoto to wide-angle, and good image quality requires a large base (large sensor size), but a large sensor size requires a larger lens. The Nikon p1000 sensor is only 2.3-inches. Although the light-efficiency zoom is second to none (125 times, no other brand can surpass it), the image quality is definitely not as good as half-frame mirrorless cameras and full-frame SLR cameras. The equivalent focal length of the Nikon P1000 telephoto end is 3000mm. If it were a full-frame focal length, it would take four people to lift the lens, making it impossible to play with. (The size of the giant gun barrel is 600mm in diameter and 3200mm in length, weighs at least 260kg, has a maximum aperture of F5.6, and costs at least 5 million yuan)