Centon's mirror lens with Minolta AF T2 adapter — the budget 500mm f/8 for A-mount.
The Centon 500mm f/8 Mirror T2 Mount with Minolta AF adapter is the budget mirror lens described under ID 4374 with a T2-to-Minolta-AF adapter. The mirror design provides 500mm reach at minimal size. The fixed f/8 is inherent. The Minolta AF adapter does not provide autofocus — it is a mechanical mount adapter only.
Same optical characteristics as ID 4374 — doughnut bokeh, lower contrast, fixed f/8. The Minolta AF T2 adapter enables physical mounting on Sony/Minolta A-mount bodies. No AF — fully manual despite the AF-mount adapter. Benefits from Sony SteadyShot body stabilisation on A-mount cameras — a genuine practical advantage.
Minolta AF/Sony A mount via T2 adapter. Weight is approximately 450 grams. Build quality is basic. Fixed f/8. Manual focus. The Sony body SR helps at 500mm — the main advantage of the A-mount adapter over other systems. No electronics — the T2 adapter is purely mechanical.
Very cheap. Same lens as ID 4374 with A-mount adapter. The Sony body SR is the practical advantage. A budget 500mm for Sony A-mount experimentation. The mirror design limitations apply — doughnut bokeh and low contrast. Better than using the same lens without stabilisation.