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Comparison

Minolta MC Rokkor-PF 55mm f/1.7 vs Olympus OM-System Zuiko Auto-S 55mm f/1.2

The Minolta MC Rokkor-PF 55mm f/1.7 is a 55mm f/1.7 Minolta SR (MC) lens made 1968-1973, valued at $30 to $120 used. The Olympus OM-System Zuiko Auto-S 55mm f/1.2 is a 55mm f/1.2 Olympus OM lens made 1972-1984, valued at $300 to $900 used.

Specifications side by side

Minolta MC Rokkor-PF 55mm f/1.7 and Olympus OM-System Zuiko Auto-S 55mm f/1.2 specifications compared
SpecificationMinolta MC Rokkor-PF 55mm f/1.7Olympus OM-System Zuiko Auto-S 55mm f/1.2
Focal length55 mm55 mm
Maximum aperturef/1.7f/1.2
Native mountMinolta SR (MC)Olympus OM
Production years1968-19731972-1984
Optical design6 elements / 5 groups, Double Gauss7 elements / 6 groups, Double Gauss
Typical used value$60$500
Value range$30 to $120$300 to $900
Adapts toSony E, Fuji X, MFT, Canon RF, Nikon Z, L-mountSony E, Fuji X, MFT, Canon RF, Nikon Z, L-mount

What actually differs

  • The Olympus OM-System Zuiko Auto-S 55mm f/1.2 is 1 stop faster: f/1.2 against f/1.7.
  • The Minolta MC Rokkor-PF 55mm f/1.7 is cheaper. Typical used value is $60 against $500, a gap of $440 (roughly 8.3x). Ranges: $30 to $120 versus $300 to $900.
  • Both are 55mm lenses, so framing is identical on the same sensor.
  • The Minolta MC Rokkor-PF 55mm f/1.7 is the older design; production began around 1968 against 1972 for the Olympus OM-System Zuiko Auto-S 55mm f/1.2 (1968-1973 versus 1972-1984).
  • They use different mounts, Minolta SR (MC) and Olympus OM, so each needs its own adapter. Both reach infinity on mirrorless bodies with a plain mechanical adapter.
  • Construction differs: 6 elements in 5 groups for the Minolta MC Rokkor-PF 55mm f/1.7, 7 elements in 6 groups for the Olympus OM-System Zuiko Auto-S 55mm f/1.2.

Which one to buy

Choose the Minolta MC Rokkor-PF 55mm f/1.7 for the $440 lower typical price. Choose the Olympus OM-System Zuiko Auto-S 55mm f/1.2 for the 1 stop of extra speed. Rendering differs too: read the character notes below, because speed and price are the only advantages the catalog data can settle.

Minimum focus distance, weight, and measured sharpness are not in the catalog, so this comparison does not claim anything about them.

Full reference pages

Mount references: Minolta SR and Olympus OM