>>4274540Sony a7c
Micro four thirds size, 4x higher quality. Accounting for equivalence and noise, a 20mp m43 camera only has as many megapixels as a 5mp full frame camera, because the image is 1/4 as much signal and 4x more noise (so nothing worth seeing). If you resize it to 5mp it still looks the same, you dont lose any detail, just noise. So, scientifically, 1 m43 megapixel is 1/4 of a full frame megapixel.