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== Compatibility Between RB and RZ Models and accessories ==

=== Film Backs ===

{| border="1" cellspacing="0" cellpadding="3" width="100%"
! style="background:gray;color:white;" |
! style="text-align:center;" | RB-67 Pro Body
! style="text-align:center;" | RB-67 Pro-S Body
! style="text-align:center;" | RB-67 Pro-SD Body
! style="text-align:center;" | RZ-67 Pro I Body
! style="text-align:center;" | RZ-67 Pro II Body
|-
| RB Pro 120 Back
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
|-
| RB Pro 220 Back
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
|-
| RB Pro-S 220 Back
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
|-
| RB Pro-S 120 Back
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
|-
| RB Pro-SD 220 Back
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
|-
| RB Pro-SD 120/220 Motorized Back
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
|-
| Graflock-compatible back
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
| style="text-align:center;background:#ffff99;" | ''With 'G' Adapter''
|-
| RZ Pro 120 Back
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
|-
| RZ Pro 220 Back
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
|}

According to Mamiya, using 120-format film in a 220 back, or visa versa, is not supported and may damage the camera. However, many users have reported success doing so. Using 120 in a 220 back may put undue stress on the pressure plate, and winding mechanism causing premature failure. Using 220 in a 120 back may cause focus issues, and will only allow you to shoot the first 10 frames.

=== Lenses ===

{| border="1" cellspacing="0" cellpadding="3" width="100%"
! style="background:gray;color:white;" |
! style="text-align:center;" | RB-67 Pro Body
! style="text-align:center;" | RB-67 Pro-S Body
! style="text-align:center;" | RB-67 Pro-SD Body
! style="text-align:center;" | RZ-67 Pro I Body
! style="text-align:center;" | RZ-67 Pro II Body
|-
| 37mm 4.5 (Z)
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
|-
| 50mm 4.5 (C)
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" |''With 'KL' Adapter''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 67mm (C)
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" |''With 'KL' Adapter''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 75mm (L) Tilt
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 90mm (C)
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" |''With 'KL' Adapter''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 127mm 3.8 (C)
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" |''With 'KL' Adapter''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 140mm 4.0 (C) Macro
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" |''With 'KL' Adapter''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 150mm 4.0 (C)
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" |''With 'KL' Adapter''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 180mm 4.5 (-)
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" |''With 'KL' Adapter''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 180mm 4.5 (Z)
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
|-
| 250mm 4.5 (-)
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" |''With 'KL' Adapter''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 360mm 6.3 (-)
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffff99;" |''With 'KL' Adapter''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|-
| 500mm (L)
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#ff9999;" | Incompatible
| style="text-align:center;background:#99ff99;" | '''Compatible'''
| style="text-align:center;background:#ffffff;" | ?
| style="text-align:center;background:#ffffff;" | ?
|}

''This is an incomplete list. Mount type is in parentheses. Original Sekor lenses did not have a designator for their mount type, and so are listed as (-). Non-KL lenses will mount in the Pro-SD body without the KL adapter, but it will be a looser mount.''

Blank-type lenses (-) are single-coated. 'C' and 'KL' mount lenses are multi-coated. The 'KL' lenses are the latest lenses produced.

All RB lenses aside from the 75mm KL T/S and 500mm KL are compatible with all RB bodies. Only the Pro-SD body is compatible with the 75mm KL T/S and 500mm KL lenses.