>>3374800It's not a problem with old glass specifically, it's a problem with certain bad lens models. I use almost exclusively old glass. I never pay more than $50 for an old lens unless I know I'm getting something very high quality, and most of my lenses were under $20. I recommend trying out a Nikkor Series E 50mm f/1.8, they are razor sharp even wide open, and they definitely set the bar for me when finding cheap good-quality old lenses. The other two sharpest vintage ones I have are the Nikkor-S 50mm f/2 and the Nikkor-Q 200mm f/4, both sharp and impressively well-built. Don't write off old glass entirely.
I took this
>>3376228 with the Nikkor-S 50mm
And I took this one with the Series E 50mm:
