довольно интересное - http://www.dpreview.com/articles/0704217094/cp-2015-fujifilm-interview-our-lenses-are-waiting-for-higher-resolution-sensors.
Закрывая вопрос о "кардинальном отличии" сенсора М1 от А1, цитата:
"The X-A2 uses a conventional Bayer-pattern filter array, but it’s basically the same sensor as that used in your X-Trans models, is that correct?
Basically yes - it’s the same sensor.
Is that purely for reasons of cost? Or are you aiming that sensor at lower-end consumers for other reasons?
Of course cost is important but overall the resolution of that Bayer sensor, its signal to noise ratio and autofocus performance are probably ideal for this type of camera. Most of the customers are pretty happy.
But it’s less expensive for you?
Yes, sure."