Sony’s new A7R IV camera is a 61 MP full-frame mirrorless beast

Sonyunveiled the latest in its line of interchangeable lens mirrorless cameras on Tuesday, debuting the A7R IV, its top-of-the-line full-frame digital shooter aimed at pros. The new camera packs a walloping 61-megapixel sensor, and will retail for $3,500 when it goes on sale this September.
The camera’s image resolution is a “world first” for a 35mm equivalent full-frame digital sensor, Sony notes, and that’s not where the improvements on this successor to the wildly popu