Canon EF + FD 50mm 1,8

 Canon FD System:

• Lens Mount: Canon FD (Introduced in 1971)
• Compatibility: Manual focus lenses designed for Canon FD mount cameras like Canon A-1, AE-1, etc.
• Focal Length: 50mm (standard lens)
• Aperture: f/1.8 (fast aperture for low light and shallow depth of field)
• Focus: Manual focus

Canon EF System:

• Lens Mount: Canon EF (Introduced in 1987)
• Compatibility: Autofocus lenses designed for Canon EOS cameras (modern Canon DSLRs and mirrorless cameras)
• Focal Length: 50mm (standard lens)
• Aperture: f/1.8 (often referred to as Canon EF 50mm f/1.8 STM)
• Focus: Autofocus

Usage and Considerations:

• Compatibility: Canon FD lenses are manual focus and require an adapter to be used on Canon EF or EF-S mount cameras due to the difference in flange distance.
• Image Quality: Canon FD lenses are known for their sharpness and optical quality, while Canon EF lenses benefit from modern coatings and autofocus technology.
• Adaptability: Adapters are available to mount FD lenses on EF or EF-S mount cameras, but functionality may vary, especially with autofocus and aperture control.