>>3013721Glass is the limiting factor, imagine a tiny 24mp sensor, with a tiny lens, any imperfection will be magnified, the lens won't outresolve the sensor by a large margin and you get a soft image.
And vice versa, a 24mp sensor the size of an a4 piece of paper and a foot wide lens, the photosites (pixels) will be much larger, giving a sharper image.
Now, I'm sure you're thinking "but the difference between crop and ff is hardly relevant", but the photosites on sonys 24mp ff sensor are 137% larger than the photosites on the 24mp crop sony sensor. As we learnt earlier, glass is the limiting factor to resolution, so unless fuji have made magic glass with optical properties more than twice as good as say zeiss, they will never, ever be competitive for image quality.
Pic related is the effect in action. As you can see the 645z destroys the d810 and 5ds for fine detail.
