Packed with a high-res 61-megapixel full-frame image sensor, the Sony A7R Mark IV is, without a doubt, a beast of a camera -- the highest resolution full-frame camera currently on the market.

Time until first shot is captured. The Sony A7R IV's startup time (power on to first shot) was pretty fast for mirrorless camera, though still slower than most DSLRs. Switching from Play to Record ...

The Sony A7 IV is a fantastic all ... the AI autofocus in the newer models like the A7R V, A7C II and the crop-sensor A6700, but the AF in the A7 IV is still reliable and effective nonetheless.