Minolta MC Rokkor PF 50mm 1:1.7 – MC-X – review
CORRECT NAME lens review, aka SEO NAME
Mount – MOUNT
SHORT INTRO
CEO NAME specifications
| Name engraved on lens | Chiyoko TELE ROKKOR |
| f[mm] | 135 |
| A max [1/f] | 4.0 |
| A min[1/f] | 32 |
| Lens design [el.] | 4 |
| Lens design [gr.] | 3 |
| Filter thread Ø front(rear)[mm] | 40 |
| Lens Shade | — |
| closefocus[m/ft] | 2.4/8 |
| Dimension Ø x length [mm] | 50/97-105 |
| Weight[g] | 435gr |
| Year | 1949-1953 |
| Style | Chiyoko |
| Notes | red (c) on the front ring means “coated” |
More data
| Floating elements | NO |
| Aperture blades number | 10 |
| Confidence in the test results of reviewed copies | Enough high |
| Reviewed Lens SN: | 3157 |
Historical note
SEO NAME lens exterior
SEO NAME mounted on camera XXXX
Not very authentic set – the camera and lens are from different periods
SEO NAME 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
SEO NAME 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 (X.Xm), buildings are on “infinity”-distance.
Test#2:
Test conditions: lens was focused on X.Xm
Light bubbles bokeh – long distance
Test #1
The lens is on the minimal focusing distance X.Xm, lights are on infinity (cityscape)
Test #2
Test conditions: lens was focused on X.Xm
SEO NAME – final conclusion
0 Comments