What is "a-mount"

A-mount or A mount may refer to:

• Minolta A-mount (Alpha/Dynax/Maxxum), a partially electronic bayonet lens mount for 35mm film autofocus SLR cameras introduced by Minolta in 1985
• Konica Minolta A-mount (Alpha/Dynax/Maxxum), the same mount also for DSLRs between 2003 and 2006
• Sony A-mount (Alpha), the same camera mount since 2006
• Hasselblad A-mount, the same camera mount for SLT cameras since 2014
• Carl Zeiss A-mount (ZA), lenses designed for A-mount cameras