Cheapest Minolta/Sony A-mount telephoto at 75-300mm, Sony Alpha compatible at essentially zero used cost.
The Minolta AF 75-300mm f/4.5-5.6 (D) is a budget telephoto zoom for the Minolta/Sony A-mount with D-type distance information. The 75-300mm provides useful telephoto reach with the A-mount compatibility that enables use on both Minolta and Sony Alpha bodies.
The 300mm reach provides genuine telephoto capability for wildlife at moderate distances, sports, and events. The D designation communicates distance information for improved metering accuracy, and the body-motor autofocus provides AF on bodies with built-in motors.
Build quality is lightweight Minolta consumer with plastic barrel. The A-mount compatibility means the lens works on Sony Alpha DSLRs and adapts to Sony mirrorless via LA-EA adapters, extending its useful life beyond the original Minolta system.
The Minolta AF 75-300mm D offers the cheapest A-mount telephoto on the used market. The Sony Alpha compatibility adds long-term value, and the 300mm reach provides functional telephoto at essentially zero cost.