No, it is the other way round. The 55mm is the earlier one and all were SC.
The
50mm was the latter and all are MC. I have never used the 55mm but the test
figures
indicate that it is not a great performer.
>>>
Key : C=Centre, E=Edge, Hi=High contrast target, Lo=Low contrast target
Results are cycles per mm
55/1.2(SC) C/Hi C/Lo E/Hi E/Lo (7 elements/6 Groups)
1.2 36 21 24 18
2 54 33 27 27
2.8 60 42 30 30
4 66 42 36 36
8 66 48 36 33
Tester's comment: Distortion low, flare not as good as 50/1.2
50/1.2(MC) C/Hi C/Lo E/Hi E/Lo (7/6)
1.2 42 36 42 30
2 60 42 48 36
2.8 66 54 54 48
4 72 60 66 54
8 66 60 72 60
Tester's comment: great performance regardless of speed, distortion,
(courtesy Shaun Weber)
<<<
Giles
kelton wrote:
> If memory serves, there's both a 50mm 1.2 and a 55mm 1.2, correct? I
> thought the 50 was the earlier version. I'd be interested to know the
> difference between these two lenses.
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