50mm Showdown - f1.1 to f1.4 - $350 to $4,000 - M Mount

Comparing the 7 Artisans f1.1 $350 lens to the f1.1 Voigtlander, f1.4 Nikkor (adapted) and the $4,000 f1.4 Leica Summilux. Check them out at B&H i...