R系列賣高像素,你鍾意數毛就一流
但要留意電腦同storage要求都大增
A73係CP值高,對焦點多過A7R3
但要頂得住佢個垃圾moon
A73
693 phase detection points covering 93% of the image area, plus 425 contrast AF points over a smaller area for accuracy.
A7R3
Same number of contrast AF points but only 399 phase detection AF points over 68% of the image area.