Legacy lenses are just old, manual focus lenses that are comparable to modern optics. If you take a simple outlook, lenses were already sharp enough by the late 50’s. Speed, better zoom ranges, and fidelity on digital sensors are advantages contemporary lenses have, but they are not necessarily sharper. For stills, old lenses are prone to abberations and light fall off- aa and other low pass filters on motion cameras alieviate some of these issues and because you are not printing so big you tend not to notice if they are there. In fact, spherical abberation can look quit nice for motion film because a really sharp lens on a well built sensor can be unpleasantly sharp- although you can soften it in post.
Legacy lenses can look softer because of spherical abberations and since they are slightly softer because they resolve to 10 micron instead of 5… which really isn’t sharpness just adjustment to sensors… they look kinda nice. And they are cheap. Some are very fast. And there are whole sets that can have similar optical quality, so good for a prime set for cinema, and they all fit full frame sensors so they can be universally adapted, and on top of that the best of them have awesome focus rings for pulling focus. They breath nicely- nothing to an Arri Ultra Super Speed, but 1/100th the price :). So I compiled a list of some different legacy lenses, mostly Nikon since those are usually considered the best, their prices, f/stops, focal ranges, and optical quality rating along with focus-ability. I have also included some new lenses from Voigtlander which some have great focusing and others have awful. There are also some random other things on there, but whatever- this is casual and whoever stumbles on this has to take it with a grain of salt. I definitely need to include more Canon FD glass and Minolta. I will update it from time to time. So far I organize by focal range and have a lose rating system with crappy instructions on the bottom. We can thank long render times and having to listen to audio for pops for this, I am bord and trapped on Google.