>Hello Zuikoholics,
>
>some arguments why are Zuikos still compare favorable with actual AF lenses.
>Lee, if you don?t mind, you should change the FAQ.
>
> >When introduced in the 1970s, the Zuiko lenses were
> state-of-the-art. Today, they are still on a level
> with competing Leica, Nikon, and Zeiss designs of
> that era.<
>
>I would add: Contemporary AF lenses show an loss of quality in make and image
>quality compared to there MF ancestors.
>I?m sure Lee, you would formulate this more elegant.
>
>And now to the lens comparison. Color Foto has changed the way they publish
>there lens tests with just a single number for each rubric.
>Winsor, the problem is, that the graphs are still available which gave are
>better impression of how the lens performs at different apertures, but it is a
>little bit difficult to represent them in ASCII. Scanning them in and putting
>them an a webside, might violate there copyright, because that?s more than
>quoting.
>Color Foto changed the way they test in 12/94, older tests are not direct
>comparable. I noticed a strange difference in the results for vignetting
>between
>the 96 and 97 tests, maybe they changed something but there was no notice
>about
>a change.
>
>I decided to compare just lenses of the same max. aperture, because the test
>numbers are an compilation of results at max. aperture and at 5,6. So it?s a
>little bit unfair to show the results of 1,4 lenses, but some of them show a
>good performance.
>
>The quality numbers for sharpness and contrast are basing on MTF
>measuring. The
>maximum number for sharpness, contrast is 30, for centering is 20 and for
>distortion, vignetting is 10, max. total is 100.
>
>Based on lens tests by the Magazin Color Foto, published in 5/96, 11/97 and
>12/97.
>
>Lens Sharpness Contrast Centering Distortion Vignetting
>Total Test in
>
>Olympus Zuiko 17,8 22,7 17 7 6
>70,5 11/97
>2/24mm
>
>Pentax-FA 18,1 21,7 14 6 6
>65,8 11/97
>2/24mm AL IF
>
>Olympus Zuiko 18,9 23,1 18 8 9
>77 5/96
>2/28mm
>
>Olympus Zuiko 18,2 23,3 19 8 6
>74,5 11/97
>2/28mm
>
>Canon EF 17,2 20,9 15 7 6
>66,1 11/97
>1,8/28mm
>
>Canon EF 18,3 22,8 16 8 9
>74,1 5/96
>1,8/28mm
>
>Minolta AF 17,9 22,7 14 8 6
>68,6 11/97
>2/28mm
>
>Minolta AF 19,1 23,4 16 9 9
>76,5 5/96
>2/28mm
>
>Minolta MD- 18,4 23,2 20 9 6
>76,6 11/97
>Rokkor 2/28mm
>
>Nikon AF- 18,6 23,1 17 8 8
>74,7 5/96
>Nikkor 1,4/28mm
>
>Sigma AF 15,6 19,1 14 8 6
>62,7 11/97
>1,8/28mm Asph. II ZEN
>
>Olympus Zuiko 18,6 24 14 9 10
>75,6 5/96
>2/35mm
>
>Olympus Zuiko 18,5 23,6 15 9 7
>73,1 12/97
>2/35mm
>Canon EF 18,8 23,3 14 9 8
>73,1 12/97
>2/35mm
>
>Minolta AF 18,4 22,5 18 9 6
>73,9 12/97
>1,4/35mm G
>
>Minolta AF 18,5 22,4 15 10 8
>73,9 12/97
>2/35mm
>
>Nikon Nikkor 19 23,9 17 9 8
>76,9 12/97
>2/35mm
>
>Nikon Nikkor 19,1 24,3 19 9 9
>80,4 5/96
>1,4/35mm
>
>Nikon AF-D 18,9 23,1 14 9 7
>72 12/97
>Nikkor 2/35mm
>
>Nikon AF- 18,6 24 14 9 10 75,6
>5/96
>Nikkor 2/35mm
>
>
>Richard
>
Richard,
This is great stuff. For myself, thank you very much.
Winsor Crosby
Long Beach, California
mailto:wincros@xxxxxxxxxxx
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