Lenses used in the following tests:
Pentax-A 50mm f/1.2
Cosina 55mm f/1.2
Pentax FA50mm f/1.4
Voigtlander 58mm f/1.4
Tamron 17-50mm f/2.8
The images below are 100% crops from the center of the lens. Images were processed in Lightroom and merged using the Pixel Stacker.
