Should you upgrade? New Sony a7 IV vs a7 III

Introduction Sony's new a7 IV is the continuation of its core line of full-frame mirrorless cameras. It includes a series of upgrades but it's also seen a price increase. Given how good the Sony a7 III was, we wanted to answer two questions: Which camera is the better buy, and is there any sense in upgrading? In this article we're going to take a closer look at these two full-frame cameras to see how they differ and try to help you work our which is the better choice for...