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Re: [OM] Not Good Zuikos

Subject: Re: [OM] Not Good Zuikos
From: David Irisarri Vila <valicors@xxxxxxxxxx>
Date: Sun, 16 Aug 1998 22:59:02 +0200
Hi folks,
        I have worked many years with an OM1 with a 50mm/f1.8 SC
with excellent results. Recently I have bought an Olympus OM4Ti
with a 50mm/f1.2. Why 1.2?
-Shallower depth of field.
-Faster.
-Brighter image in the viewfinder plus the new "2-13".
        Now, I have made a trip through Europe and I have taken
360 photographs with the same sharpness than my old Zuiko but
contrast is much better than my predecessor. I think that when 
you have to say something about, you need to have both and take
many snaps in order to make a good balance and decide. I have to
say that its a little more heavier but now I have got used to it
and I can´t see the difference. Another thing, I have taken some
photos at f1.2 with Ektachrome and after I have seen them with my
projector and they were very impressive. You can lose sharpness at 
f1.2 but when you see the overall picture, with rich colour and
contrast, is when you can say why Zuiko have better performance than
Nikon high-contrast elements; and now making use of the old message
"Experience with Olympus America" imagine! I have bought a Zuiko
50mm/1.2, stored since 04/84 and is much better than Leica Sumilux
50mm/f1.x.

        I learnt a good thing from someone of you into Olympus 
mailing list. Resolution is good but content is everything!
I give you some test if you don´t like personal experiences. :-)))

OLYMPUS FOREVER!!!

pd: Hello Olympians, I love Paris!!!
 
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
50/1.8(MC)      C/Hi    C/Lo    E/Hi    E/Lo    (6/4) 

1.8             48      42      48      36
2.8             66      54      48      42
4               72      66      60      48
8               72      66      66      54
50/1.2 MC (11/83 p. 131):
        1.2     2       2.8     4       5.6     8       11      16
Resolution (lines/mm) at 1:50x
Center: VG 45   Gd 50   Gd 56   VG 63   VG 63   VG 63   VG 56   VG 56
Corner: Ex 35   Ex 40   Ex 45   Ex 50   Ex 56   Ex 56   Ex 50   VG 45

Contrast (%) at 30 lines/mm
Center: Hi  58  Hi  60  Hi  64  Hi  68  Hi  76  Hi  78  Hi  75  Hi  67
Corner: Med 26  Med 30  Hi  44  Hi  60  Hi  73  Hi  74  Hi  66  Hi  81

50/1.8 MC (5/83 p. 94 (w/OM-G test, pp. 90-94)): 
Actual: 51.87/1.86, Distortion: <1% barrel, Falloff: 0.5 stops at f/5.6
(the modern 6 element in 4 group design)
        1.8     2.8     4       5.6     8       11      16
Resolution (lines/mm) at 1:50x
Center: Gd 50   Gd 50   Gd 56   VG 63   Ex 71   Ex 63   VG 56
Corner: Ex 40   Ex 45   VG 50   Ex 63   Ex 63   Ex 63   Ex 50

Contrast (%) at 30 lines/mm
Center: Hi 48   Hi 60   Hi 67   Hi 60   Med 57  Hi 54   Hi 50
Corner: Low 24  Hi 39   Hi 56   Hi 62   Hi 63   Hi 60   Hi 56


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