Sony's breakthrough 42.4MP full-frame mirrorless — first with BSI sensor, 5-axis IBIS, and 4K video.
The Sony A7R II launched in 2015 as a watershed camera — the world's first full-frame mirrorless with a back-illuminated sensor, combining 42.4MP resolution with 5-axis IBIS and 4K video. It proved that mirrorless could match or exceed DSLRs for professional resolution work.
The 42.4MP BSI Exmor R CMOS sensor delivers outstanding image quality with 14 stops of dynamic range. 399-point phase-detect AF covering 45% of the frame. 5fps burst. 5-axis IBIS rated at 4.5 stops. 4K internal recording with full pixel readout — supersampled from full sensor width.
Magnesium alloy body at 625g with weather sealing. Single SD card slot. 2.36M-dot OLED EVF. 3-inch tilting LCD — not touch. USB micro-B. WiFi and NFC. A-mount adapter compatible — expanded the A7R II's appeal to A-mount lens users.
Available used at mid-range prices — outstanding value. The A7R III improved AF, battery, and added dual cards. The A7R IV pushed to 61MP. Check shutter count — rated 500,000 actuations. A pivotal camera in photography history that remains excellent for resolution-critical work.