Baader M48 SPACER FOR MPCC III COMA CORRECTOR

The M48 spacer ring for M48/MPCC III / Protective EOS T-Ring. 
       
An important new addition for the MPCC Mark III accessory, use the full aperture of the M48 thread instead of M42 in conjunction with the Baader protective CANON T-Ring. 
 
This M48 spacer ring is the necessary addition in order to mount the MPCC Mark III directly onto the Baader protective EOS T-ring while securing the correct optical
distance of 55mm and by utilizing the full M48 unvignetted aperture.