Baader Planetarium MPCC M48 Spacer Ring for Protective III EOS T-Ring - Black

Baader M48 Spacer Ring for MPC lll / Protective EOS T-Ring This M48-spacer ring is necessary for connecting the MPCC Mark III coma corrector at Baader Protective Canon EOS T-Ring Use the full aperture of the M48 thread instead of M42 – in conjunction with the Baader protective CANON T-Ring Baader Planetarium MPCC M48 Spacer Ring for EOS T-Ring Protective III