Model
Test Results
Sigma SAF 28-70mm F2.8-4 UC [632]
tested by Tutti Fotografi (Italy)
f
:
30mm
35mm
43mm
53mm
67mm
Aperture
Center
Border
Center
Border
Center
Border
Center
Border
Center
Border
F3.5
8.2
5.8
7.8
6.2
7.8
6.0
7.8
5.4
6.8
5.2
F5.6
7.8
6.7
7.6
6.0
7.8
5.5
7.4
3.8
7.6
5.2
F8
8.0
7.2
8.0
6.7
8.0
6.0
7.6
4.8
7.6
6.2
F11
7.8
7.4
7.8
7.2
7.8
6.8
7.4
5.8
7.5
6.6
F16
7.6
7.0
7.6
7.0
7.4
7.0
7.2
6.4
7.0
6.4
F22
6.6
6.0
6.2
6.2
6.4
6.2
6.0
5.6
5.8
5.4
Distortion:
5.5% barrel
2% barrel
1% cushion
2% cushion
3% cushion
Vignetting:
1/3 aperture
1/3 aperture
1/2 aperture
1/2 aperture
1/2 aperture
Sigma AF 70-210mm F4.0-5.6 UC [779]
tested by Tutti Fotografi (Italy)
f
:
71mm
88mm
114mm
154mm
206mm
Aperture
Center
Border
Center
Border
Center
Border
Center
Border
Center
Border
F4
8.1
6.0
7.8
5.5
7.8
5.7
7.8
6.4
7.8
6.2
F5.6
7.6
6.9
8.2
6.5
8.5
7.3
8.4
7.4
7.9
6.4
F8
8.3
7.5
8.4
7.9
8.3
7.5
8.2
7.4
7.8
6.5
F11
8.0
7.5
8.0
7.6
7.8
7.2
7.6
6.8
7.2
6.2
F16
7.4
7.0
7.4
6.8
7.2
6.4
6.8
6.2
6.4
5.6
F22
6.4
6.2
6.6
6.0
6.0
5.5
-/-
-/-
-/-
-/-
Distortion:
1% cushion
1.5% barrel
3.5% cushion
3.5% cushion
3.5% cushion
Vignetting:
1/2 aperture
1/2 aperture
1/2 aperture
1/2 aperture
1/2 aperture
Sigma AF 90mm F2.8 Macro [253 + 254]
tested by Modern Photography 06/89
Magnification:
1:2
1:49
Aperture
Center
Border
Center
Border
F2.8
57
29
69
62
F5.6
72
40
87
78
Distortion:
0.68% cushion
0.68% barrel
