The Sony Alpha 7R IVA (ILCE-7RM4A) is a minor refresh of the A7R IV featuring an improved 3.68M dot OLED viewfinder with 0.90x magnification, replacing the 5.76M dot OLED EVF of the original. All other specifications including the 61 MP sensor, 5-axis IBIS, and AF system remain identical. The A7R IVA is a minor variant in Sony's high-resolution Alpha 7R lineup.