Canon EC-R Focusing screen adaptor til kameraobjektiv

Focusing Screen Ec-R for EOS 1N, EOS-1D, EOS-1D Mark II, EOS-1D Mark II N,
EOS-1D Mark III, EOS-1Ds, EOS-1Ds Mark II, EOS-1Ds Mark III, EOS-1v,
EOS-1v HS Body, EOS-3.