Hi all:
Here is the OLY zoom test I promised I'd post. I didn't do the comparison to
any other make, although it is a poorer performer than the Canon FD lens,
primarily at the edges.
Gary Reese
Las Vegas, NV
*****************
Zuiko Auto Zoom 35-105 mm f/3.5-4.5
At 35 mm (actual 36.15 mm) focal length:
3.5 5.6 8
Center 52 70 73
1/3rd out 55 69 71
2/3rds out 45 49 51
Far edge 30 31 42
Centering: Perfect
Flare: 1.55%
Distortion: Very slight barrel
Measured largest aperture: f/3.29
Transmission: 87%
Vignetting: None beyond f/8
At 70 mm (actual 69.12 mm) focal length:
3.5 5.6 8
Center 60 82 82
1/3rd out 59 70 75
2/3rds out 35 38 49
Far edge 24 30 37
Centering: Perfect
Flare: 1.45%
Distortion: Moderate pincushion
Measured largest aperture: f/4.06
Transmission: 87%
Vignetting: None beyond f/5.6
At 105 mm (actual 102.74 mm) focal length:
3.5 5.6 8
Center 70 72 75
1/3rd out 69 75 75
2/3rds out 40 52 60
Far edge 30 41 51
Flare: 1.6%
Distortion: Moderate pincushion
Measured largest aperture: f/4.67
Transmission: 87%
Vignetting: None beyond f/5.6
At 35 mm close focus limit (actual 36.15 mm):
3.5 5.6 8
Center 55 69 70
1/3rd out 50 62 69
2/3rds out 25 34 45
Far edge 14 15 16
Flare: 1.35%
Distortion: None
Transmission: 94%
Vignetting: None beyond f/6.3
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