Amazon.com : TTArtisan Tilt 50mm F1.4 Large Aperture Full Frame Tilt Manual Focus Prime Lens Compatible with L Mount System Cameras T、TL、TL2、CL Panasonic S1/S1M/S1R/S1RM/S1H/S1K/S5/S5K/S5C Sigma FP、FPL : Electronics
Amazon.com : Industar 50-2 50/3.5 50mm black Russia USSR Soviet lens SLR DSLR camera Zenit Praktica M42 CLA : Electronics
Review: AstrHori 50mm 1.4 Tilt - phillipreeve.net
The Best 50mm 1.4 | Manual Lens| Results - Canon FD, Leica Summilux-M, Nikon Ai-S and Pentax Smc - YouTube