Used Nikon NIKKOR 50mm f/1.4 Lens 1433 B&H Photo Video
Amazon.com : AstrHori 50mm F1.4 Large Aperture Full Frame Manual 2-in-1 Tilt Lens Miniature Model Effect & Filter Slot Compatible with Canon RF-Mount Mirrorless Camera EOS RP,EOS R5,EOS R6,EOS R3,EOS R :
Nikon 50mm f/1.4 AI-S Review
Repair: Nikkor 50mm f/1.4 Ai-S | Richard Haw's Classic Nikon Repair and Review