This is comparing 4 quite cheap vintage 135mm lenses.
0:10 First we compare them up through their apertures on the same shot taken on a Sony A7iii (full sensor height)
0:39 Then we apply a few grades to that shot.
1:10 Next we look at each lens with very strong back-lighting and applying a grade on a Blackmagic Pocket Cinema Camera 4K with a Viltrox 0.71x focal reducer.