Adaptador de chip de confirmación AF para lente Praxis PB para Canon 7D 6D 70D 5D III II
Praktica PB Lens to Canon EOS Adapter Ring 7/70/6/60/80/750D w/ 9th AF Confirm Chip. (Note :it don' fit 5D Mark IV and 6D Mark II ). With AF confirmation 9 generation chip.