>>3123448>How good are vintage lenses compared to modern manual ones?If you want to compare the best of the best now to the best of the best then: now wins just about every single time.
However, you can buy a Canon FL mount 55mm f/1.2 for less than $200. Sometimes far less. The EF version of the lens is over $1000. The difference in sharpness between them is subtle. But the difference in price is huge. You could use the $800 different to buy more gear (lol) or actually, you know, go out on the road somewhere and take pictures.