Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The Minolta AF 28mm f/2.8 is a camera lens originally produced by Minolta, and produced by Sony after Sony took over Minolta's AF SLR and DSLR business. It is compatible with cameras using the Minolta AF and Sony αlens mounts. Since Sony introduced their mirrorless interchangeable lens cameras with their "E-Mount", Sony offers various A-to-E Mount adaptors (LA-EA 1/2/3/4/5) to allow use of legacy A-Mount lenses on E-Mount cameras.