Another Minolta New MD 28mm F3.5 lens review

After getting a new lens, I always take a few technical shots to understand its strengths and weaknesses – usually it helps me a lot to start using unknown lens with much less of doubt. One day I decided that my data might be interesting for someone else and this site has been made.

MD_28_3_5_DSC00525.jpg

Minolta New-MD (MD III) 28mm 1:3.5 parameters:

minolta.eazypix.de index 62
Name engraved on lens MD
f[mm] 28
A max [1/f] 3.5
A min[1/f] 22
Lens design [el.] 5
Lens design [gr.] 5
Filter thread Ø front(rear)[mm] 49
Lens Shade clip-in
closefocus[m/ft] 0.3/1
Dimension Ø x length [mm] 64×40
Weight[g] 170
Year 1981
Style MD III
Code No. (ROKKOR-X) or Order No. 591-810

Lens exterior:

(Please, forgive me the dust on the lens, I never have the patience to clean objects for close-up photo sessions)

 

Lens wasn’t in good condition when I got it. It was cleaned and lubricated but signs of use still presented. In anyway it works fine and even more – see the resolution tests, it like a hidden hero among of minolta’s 28mm.


Lens code name – Kinuyo Nishi 西 絹代

Kinuyo Nishi – is the commander of the Sensha-Dō team of Chi-Ha-Tan Academy. She, along with other Chi-Ha-Tan Academy students, became an Ooarai temporarly transferred student in order to join the Ooarai team against Selection University.

 


Resolution – close distance:

Test description: target is a 10×15 cm picture (printed, glossy photo paper), fixed on the wall by scotch. Distance – about 10% longer than minimal focus distance marked on the lens. Camera Sony A7II (24mpx, full frame) was fixed on the tripod and managed remotely with computer display as a viewfinder. All groups of shots were repeated 9 times for every target position on all apertures from fully opened up to F16, ISO-100, WB – same for all shots. SteadyShot – OFF. Focus was manually corrected for each shot. After all needed shots have been taken for one target position – I moved  the target to the next place.

test_scene_view300x200

Main idea – to exclude the field curvature affect on so close distance.

Of course, I can’t be absolutely accurate, but so many repeats of shots – 4 for corners, 2 for long side, 2 for short side are giving me insurance that test results are correct.

Finally, pictures were converted from ARW-files in Capture One with default settings (Some single files have a slight light correction, for better visual convenience in comparison), then cropped for 300×200 px elements, combined into diagrams and exported into JPEG-files.

Scene preview:

_MD_28_3_5_F_preview2

Test results (selected version, easy to compare – 4 positions):

28_3_5_close_dist_test_SHORT.jpg

Test results (full version – all 9 positions):

28_3_5_close_dist_test_FULL.jpg


Resolution – long distance:

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 have been taken with apertures from fully opened up to F16. ISO-100. Shutter Speed – depends on light (camera A-mode), WB – fixed and the same for all shots. SteadyShot – OFF. Focus was manually corrected for each shot to exclude focus-shift affect.

Finally, pictures were converted from ARW-files in Capture One with default settings (Some single files have a slight light correction, for better visual convenience in comparison), then were cropped for 300×200 px elements, combined into diagrams and exported into JPEG-files.

Scene preview:

_MD_28_3_5_F_longdist_scene2

Test results:

28_3_5_LONGDIST.jpg


Vignetting:

(frames scaled – 300×200)


Geometric distortion:

(frame scaled 1200×800)


Coma aberrations:

(100% crops – 300×200)


Chromatic aberrations:

(100% crops – 300×200)


Close distance bokeh:

Test conditions: lens was focused on to minimal distance (0.25m), plants were fixed in 2m distance from camera in front of the window with bright light from outside.

(frame scaled 1200×800, bokeh covers the frame partially)


Long distance bokeh:

Test conditions: lens was focused on half distance on the scale (0.5m), houses were fixed in infinity distance on the ground.

(frame scaled 1200×800)


Light dots bokeh:

Test conditions: lens was focused on to minimal distance + 10% of scale (about 0.27m), diodes were  fixed in 2m distance at the dark background.

(frame scaled 1200×800)


My overall conclusion about the Minolta N-MD 28mm 1:3.5F (Minolta MD III 28mm F/3.5):

It was a surprise for me: very sharp 28mm Minolta. Really, if you need a lens for landscapes on 28mm – this will be the best choice. In another words – if you need a working 28mm, but you can’t afford MD 28mm F2.0 – you should prefer this MD 28mm F3.5 instead of faster MD 28mmF2.8.  As previous lens it works fine with auto-focus adapters like Techart-Pro, and still convenient enough if you prefer manual focusing.


This lens took part in the battle:

MD28mmAll_Battle__AvatarMDZ2870_MD2835_MDZ3570_Battle__Avatar.png

MD28mmAll_Battle_Round2_Avatar.png

2 thoughts on “Review: Minolta MD 28mm 1:3.5

  1. Do you know if there are optical differences between the MD(II) and the MD(III) version of this lens? MD(II) lenses have better build quality for what I’ve seen.

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    1. This is quite old optical design, I think that differences are mostly in the coating, so lenses are the same at least or MDIII is better. And about build quality – I agree that MC I/II is built like a rock, but I don’t see advantages of MDII against MDIII, need to disassemble one for confidence

      Like

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