Minolta SR mount 28mm Lenses

Home

MC W.Rokkor 28mm 1:2
Focal length28mm
Speed1:2
Minimum focus distance0.3m
Optical design (elements/groups)10/9
Filter thread size55mm
Weight340g
Introduced1975
The first version of the fast 28mm lenses; my sample has severe separation.
Picture gallery
10
MC W.Rokkor 28mm 1:2
MD W.Rokkor 28mm 1:2
Focal length28mm
Speed1:2
Minimum focus distance0.3m
Optical design (elements/groups)10/9
Filter thread size55mm
Weight340g
Introduced1977
The MD version of the previous lens
Picture gallery
20
MD W.Rokkor 28mm 1:2
MD 28mm 1:2
Focal length28mm
Speed1:2
Minimum focus distance0.3m
Optical design (elements/groups)9/9
Filter thread size49mm
Weight265g
Introduced1981
The last version of the fast 28mm lenses, this type doesn't have cemented elements anymore and is lighter and smaller.
Picture gallery
30
MD 28mm 1:2
MC W.Rokkor-SI 28mm 1:2.5
Focal length28mm
Speed1:2.5
Minimum focus distance0.5m
Optical design (elements/groups)9/7
Filter thread size55mm
Weight340g
Introduced1969
First version of the 28/2.5
Picture gallery
40
MC W.Rokkor-SI 28mm 1:2.5 MC-I
MC W.Rokkor-SI 28mm 1:2.5
Focal length28mm
Speed1:2.5
Minimum focus distance0.5m
Optical design (elements/groups)9/7
Filter thread size55mm
Weight340g
Introduced1969
Second version with the hills-and-dales focussing ring
Picture gallery
50
MC W.Rokkor-SI 28mm 1:2.5 MC-II
MC W.Rokkor-SI 28mm 1:2.5
Focal length28mm
Speed1:2.5
Minimum focus distance0.5m
Optical design (elements/groups)9/7
Filter thread size55mm
Weight350g
Introduced1973
This is the last of the 3 incarnations of the 28/2.5. My sample suffers from yellowing well-known for this lens type, even though it's the most recent version.
Picture gallery
60
MC W.Rokkor-SI 28mm 1:2.5 MC-X
MC W.Rokkor 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)7/7
Filter thread size55mm
Weight240g
Introduced1975
The successor to the 28mm 1:2.5, much smaller and lighter, but also 1/3 of a stop slower. No radio-active elements as well, so no yellowing.
Picture gallery
70
Minolta MC W.Rokkor 28mm 1:2.8
MC Celtic 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)7/7
Filter thread size55mm
Weight240g
Introduced1975
The budget version of the MC W.Rokkor 28mm 1:2.8. Slightly sunken dot instead of raised dot and different patterns on the rubber focussing grip and aperture ring.
Picture gallery
80
Minolta MC Celtic 28mm 1:2.8
MD W.Rokkor 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)7/7
Filter thread size55mm
Weight240g
Introduced1977
The first MD version of the 28/2.8, the extra MD lug is the only significant change here. It kept the metal aperture ring.
Picture gallery
90
MD W.Rokkor 28mm 1:2.8
MD Celtic 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)7/7
Filter thread size55mm
Weight240g
Introduced1977
The budget version of the previous model. I couldn't find data on it. I assume that the basic data are the same as those for the Rokkor equivalent.
Picture gallery
100
MD Celtic 28mm 1:2.8
MD W.Rokkor 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)7/7
Filter thread size49mm
Weight180g
Introduced1978
The more compact version with plastic aperture ring.
Picture gallery
110
MD W.Rokkor 28mm 1:2.8
MD W.Rokkor 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)7/7
Filter thread size49mm
Weight180g
Introduced1978
Different cosmetics compared to the previous model. Most obvious is the pattern on the rubber ring, but note also the recessed red dot instead of the raised dot and the yellow feet scale.
Picture gallery
120
MD W.Rokkor 28mm 1:2.8
MD W.Rokkor-X 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)7/7
Filter thread size49mm
Weight180g
Introduced1978
The later American version with white lettering
Picture gallery
125
MD W.Rokkor-X 28mm 1:2.8 white lettering
MD Celtic 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)7/7
Filter thread size49mm
Weight180g
Introduced1978
This model, the budget version, shows a striking resemblance to the previous Rokkor model.
Picture gallery
130
MD Celtic 28mm 1:2.8
MD 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)7/7
Filter thread size49mm
Weight185g
Introduced1981
The plain MD version, this one very probably has the same optical design as its predecessors.
Picture gallery
140
MD 28mm 1:2.8
MD 28mm 1:2.8
Focal length28mm
Speed1:2.8
Minimum focus distance0.3m
Optical design (elements/groups)5/5
Filter thread size49mm
Weight185g
Introduced1983
New optical design, recognizeable by the slightly different front ring design and the larger radius of the front element.
Picture gallery
150
MD 28mm 1:2.8
Auto W.Rokkor-SG 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.6m
Optical design (elements/groups)7/7
Filter thread size67mm
Weight345g
Introduced1963
Minolta's very first 28mm lens and the only one without meter coupling
Picture gallery
160
Auto W.Rokkor-SG 28mm 1:3.5 ø67mm AR-II
MC W.Rokkor-SG 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.6m
Optical design (elements/groups)7/7
Filter thread size67mm
Weight350g
Introduced1966
The MC version of the 28mm, otherwise very similar to the Auto version
Picture gallery
170
MC W.Rokkor-SG 28mm 1:3.5 ø67mm
MC W.Rokkor-SG 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.6m
Optical design (elements/groups)7/7
Filter thread size55mm
Weight245g
Introduced1968
The second 28mm optical design, smaller, lighter and with a 55mm filter thread
Picture gallery
180
MC W.Rokkor-SG 28mm 1:3.5 MC-I
MC W.Rokkor-SG 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.6m
Optical design (elements/groups)7/7
Filter thread size55mm
Weight260g
Introduced1969
Same optical design, but different cosmetics, notably the hills-and-dales focussing ring
Picture gallery
190
MC W.Rokkor-SG 28mm 1:3.5 MC-II
MC W.Rokkor-SG 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.6m
Optical design (elements/groups)7/7
Filter thread size55mm
Weight260g
Introduced1973
Still the same optical design, but yet another cosmetic change. Note the rubber-clad focussing ring and the black aperture ring.
Picture gallery
200
MC W.Rokkor-SG 28mm 1:3.5 MC-X
MC Celtic 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.6m
Optical design (elements/groups)7/7
Filter thread size55mm
Weight260g
Introduced1974
The same optical design as the previous model. Maybe the coatings are less sophisticated and the usual cosmetic differences between Rokkor and Celtic apply.
Picture gallery
210
MC W.Rokkor-SG 28mm 1:3.5 MC CE
MC W.Rokkor 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.3m
Optical design (elements/groups)5/5
Filter thread size55mm
Weight220g
Introduced1975
A new and simpler optical design and also different styling. No letters anymore for the number of elements and groups and a combined diamond indicator for focus distance and aperture.
Picture gallery
220
MC W.Rokkor 28mm 1:3.5
MD W.Rokkor 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.3m
Optical design (elements/groups)5/5
Filter thread size55mm
Weight195g
Introduced1977
The MD version. Most important feature is its extra lug on the aperture ring for signalling the minimum aperture, als note the different font types on front, focussing and aperture rings. Serial number disappeared from the front ring and is now engraved on the barrel.
Picture gallery
230
MD W.Rokkor 28mm 1:3.5
MD W.Rokkor 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.3m
Optical design (elements/groups)5/5
Filter thread size49mm
Weight160g
Introduced1978
The second MD version has a 49mm filter thread size and plastic aperture ring.
Picture gallery
240
MD W.Rokkor 28mm 1:3.5
MD 28mm 1:3.5
Focal length28mm
Speed1:3.5
Minimum focus distance0.3m
Optical design (elements/groups)5/5
Filter thread size49mm
Weight170g
Introduced1981
The last version, the plain MD without Rokkor designation.
Picture gallery
250
MD 28mm 1:3.5

Home