Comment by Balgair

Generally, these cameras are many years out of date. They don't load up the rovers with the latest gear from today, but with the latest gear from when the design review process was closed. I don't know when that was for Perseverance, but it would not surprise me if that was a decade ago. The cameras are also not specifically designed for image capture, but for scientific study. In that they take images at a wider range of wavelengths than what humans can see. It's a subtle difference, but an important one. Additionally, the cameras' chips are not what we have commercially. They are designed to withstand the vacuum, the solar radiation on the long transit, and for use on the Martian surface for many years. You can't swap them out, ever. As such, they are much more 'rugged', which may effect image quality as well.