This is a fun thread. As many have pointed out, certain "old" lenses have a "look" to the way they draw an image. However, I for one, have become spoiled as to how good modern computer designed, multi coated lenses are. Some "old" lenses were really not very good. I put an old 135mm f2.8 Nikkor-Q (AI'd) on a D800E. The lens has a built in sliding hood, which I used. ISO 400 1/160 sec, f11. To add to the fun, I processed the RAW image twice in Exposure plug in. Once to emulate Kodachrome 25, and one to emulate Fuji 50. Even though I used the hood, look at the veiling flair on the edges; especially the right edge (that's where the sun was).
Thanks for the modern lenses, although I know, carefully used, lens traits/flaws can be used in artistic ways.
Keep them coming!
Dave in NJ