Like many technologies, the first couple of mirrorless cameras were a step back from DSLRs, but the fundamentals of mirrorless design have allowed them to rocke

Like many technologies, the first couple of mirrorless cameras were a step back from DSLRs, but the fundamentals of mirrorless design have allowed them to rocket past the capabilities of any DSLR. Take a look at the Nikon Z9, which is a professional mirrorless and shutterless camera. It can take essentially infinite shots without wearing out. DSLRs need maintenance every few hundred thousand shots, which sounds like a lot, but some pros take 10-20K per day. Timelapse videos especially are murder on DSLRs and can take big chunks out of the shutter mechanism lifetime. The lack of moving parts means it can be totally silent and take full-res shots at 30 fps without mirror blackout. Lower-res shots can be taken at an astonishing 120 fps, which allows photographers to capture fleeting moments that would be missed otherwise. Focus is as-good, if not better than any other DSLR in the world. E.g.: eye-tracking auto-focus is generally not possible on DSLRs because they can't use the full-resolution sensor while the mirror is down, and eyes are too small to recognise with the phase-detect array. They've thrown in 4K and 8K HDR video capture as well, because why not, and this works with the viewfinder. That's not possible on DSLRs because the mirror blocks the viewfinder in video mode.