Minolta MC Rokkor PF 50mm 1:1.7 – MC-X – review

Published by Tony on

Minolta MC Rokkor PF 50mm 1:1.7

Mount – SR

  • Official classification: SR
  • Collector’s classification: MC-X

I almost missed this lens in my tests. It is so standard that there is literally nothing to say about it, except what is usually said about 50mm f/1.7 lenses. And  absolutely functional lens. They were released in huge quantities, as they were kit lenses for many camera models. Look at the tests. It is another one beautiful Minolta’s product.

Minolta MC Rokkor PF 50mm 1:1.7 specifications

Name engraved on lens MC Rokkor PF
f[mm] 50
A max [1/f] 1.7
A min[1/f] 16
Lens design [el.] 6
Lens design [gr.] 5
Filter thread Ø front(rear)[mm] 55
Lens Shade
closefocus[m/ft] 0.5/1.75
Dimension Ø x length [mm] 64.6×41
Weight[g] 240gr
Year 1973
Style MC-X
Notes  

More data

Floating elements NO
Aperture blades number 6
Confidence in the test results of reviewed copies Enough high
Reviewed Lens SN: 4210416

Historical note

 

Minolta MC Rokkor PF 50mm 1:1.7 lens exterior

Minolta MC Rokkor PF 50mm 1:1.7 mounted on Minolta XD

Not very authentic set – the camera and lens are from different periods

Minolta MC Rokkor PF 50mm 1:1.7 sharpness

Сlose-distance resolution test, minimal distance

Testing methods description

  • Target: 10-15 cm picture, printed on glossy photo paper
  • Distance: 1.7m
  • Camera: Sony A7II (24mpx, full-frame, tripod, remote control). M-mode, ISO fixed, WB fixed, SteadyShot – OFF.
  • The test was repeated for every F-stop on every focus position with manual focus adjustment for each shot. That is to avoid the effect of field curvature.
  • RAW processing: Capture One, default settings. All quality settings – 100%. Crops – 300×200 px

Original target image (printed in horizontal orientation on 10cm X 15cm glossy photo paper)

Scene preview

Test results

Long-distance resolution test

Testing methods description

  • Target: cityscape
  • Distance: > 200 meters to center focus point
  • Camera: Sony A7II (24mpx, full-frame, tripod, remote control). M-mode, ISO fixed, WB fixed, SteadyShot – OFF. The focus point is on the center only.
  • RAW processing: Capture One, default settings. All quality settings – 100%. Crops – 300×200 px

Scene preview

Test results

Minolta MC Rokkor PF 50mm 1:1.7 aberrations

Vignetting

Geometric distortion

Coma aberrations

Chromatic aberrations

Long-distance bokeh

Test #1

Test conditions: the lens was focused on minimal distance on the scale (0.5m), buildings are on “infinity”-distance.

Test#2:

Test conditions: lens was focused on 2.0m

Light bubbles bokeh – long distance

Test #1

The lens is on the minimal focusing distance 0.5m, lights are on infinity (cityscape)

Test #2

Test conditions: lens was focused on 2.0m

Minolta MC Rokkor PF 50mm 1:1.7 – final conclusion

I’m still going to write a conclusion, because this lens is just a normal fifty which is almost as good as F1.4 50mm lenses but much cheaper. It is usable with no doubts.

 

 


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