>>3308089>>3308089>seriously believing thisay m8, let me try to overload your brain here. When you take a surface with evenly distributed dots, and then crop it, does the dot density decrease? No, it's just less dots due to less surface. That's what cropping does so that the image/video becomes "narrower".
A small sensor perform just as well as a large as long as they have same pixel density. What matters is pixel size and pixel sensitivity.