Comparison of lenses Chiyoko (Minolta) Super Rokkor 50mm 1:2.0, Chiyoko (Minolta) Super Rokkor 50mm 1:2.8

This comparison is correct only for conditions and equipment used for tests. Test results can be differ if any element is changed.

Tested lenses reviews:

AvatarPlankMSR5020

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Test description: Camera Sony A7II (24mpx, full frame) was fixed on the tripod and managed remotely with computer display as a viewfinder. Targets (buildings) were fixed by gravity power on the distances in more than 200 meters.  All shots were made with apertures from fully opened and up to F16. ISO-100. Shutter Speed – depends on light (camera A-mode). SteadyShot – OFF. Focus was manually corrected for each shot to exclude focus-shift.

Finally, pictures were converted from ARW-files in Capture One with default settings, then cut into 300×200 px elements (100% crops), combined into diagrams and exported into JPEG-files.

Notes:
  • Sunlight has been changed during the session.
  • I am just a man, I do not pretend that in all cases my focus settings were absolutely accurate. But I aspired to it.

Scene preview:

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Test results:

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My conclusion:

Center:

  • Both are great even if wide opened. Even from the modern point of view.

Middle:

  • Super Rokkor 50mm F2.0 becomes acceptable at F4 and totally sharp at F8
  • Super Rokkor 50mm F2.8 is acceptable from F5.6, and only at F11 it can provide maximum resolution. Unfortunately, this maximum level is a little bit less than what was shown by Super Rokkor 50mm F2.0 and never will be equal, even at F16.

Corner:

  • Super Rokkor 50mm F2.0 becomes acceptable from F2.8, it’s not a mistake, all tests demonstrate better resolution in corners than in middle on infinity. Very good sharpness is on F5.6, and F8 is ideal for landscapes.
  • Super Rokkor 50mm F2.8 becomes acceptable at F11, and never becomes totally sharp.

That’s not a surprise that Super Rokkor 50mm F2.0 is a winner in terms of sharpness, so it’s better for landscapes, but it’s impossible to say what lens is better for other photo-styles, because bigger aberrations can provide more artistic possibilities,.. or can’t – depends on taste of photographer.


Additionally, performance of Super Rokkor 50mm F2.0 can be seen here:

Resolution test: LTM lenses – Canon S 50mm f/1.4 I vs. Canon S 50mm f/1.5 Serenar vs. Canon S 50mm f/1.8 I Serenar vs. Super Rokkor 50mm f/1.8 vs. Super Rokkor 50mm f/2.0 vs. Minolta MD 50 f/1.4

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