Canon EC-R Focusing screen

Verre de visée Ec-R pour EOS 1N, EOS-1D, EOS-1D Mark II, EOS-1D Mark II N,
L'EOS-1D Mark III, EOS-1Ds, EOS-1Ds Mark II, EOS-1Ds Mark III, EOS-1v,
EOS-1v HS Corps, EOS-3.