How Much Has Eight Years of Mirrorless Progress Actually Bought You?

If you're still shooting on a five-to-eight-year-old body and quietly wondering whether the upgrade math pencils out, this is the honest answer: image quality is not the reason to move. The sensor gains are real but marginal in normal shooting conditions. What actually separates a 2024 body from a 2017 one is everything around the image — autofocus behaviour under pressure, buffer depth, EVF responsiveness, ergonomic decisions that compound across a full day's work. That's where eight years shows. Worth reading before you talk yourself out of an upgrade again.