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First Look at the New Sigma 17-35mm f/2.8-4 EX DG AF
Exclusive SQF (Subjective Quality Factor) test results for the new Sigma lens. The full test will appear in a future issue.
By Pop Photo Staff
June 2005
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| SUBJECTIVE QUALITY FACTOR @17 |
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A+
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A
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B+
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B
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C+
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C
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D
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F
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KEY
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Size
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3.5x5
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4x6
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5x7
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8x10
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11x14
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16x20
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20x24
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2.8
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97.6
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96.9
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96.6
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95.5
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93.1
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88.2
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82.3
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4.0
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97.7
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97.0
|
96.7
|
95.7
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93.3
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88.6
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83.0
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|
5.6
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97.9
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97.2
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96.9
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95.9
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93.7
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89.5
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84.4
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|
8.0
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97.9
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97.2
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96.9
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96.0
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93.8
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89.6
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84.7
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|
11.0
|
97.8
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97.1
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96.8
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95.8
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93.4
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89.0
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83.8
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16.0
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97.4
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96.6
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96.2
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95.0
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92.3
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86.9
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80.4
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22.0
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96.8
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95.8
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95.4
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94.0
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90.7
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83.9
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75.4
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| SUBJECTIVE QUALITY FACTOR @24 |
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A+
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A
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B+
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B
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C+
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C
|
D
|
F
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KEY
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Size
|
3.5x5
|
4x6
|
5x7
|
8x10
|
11x14
|
16x20
|
20x24
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3.5
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97.6
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96.8
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96.5
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95.4
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92.9
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88.1
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82.4
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5.6
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97.8
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97.1
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96.8
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95.8
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93.5
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89.2
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84.2
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8.0
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97.9
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97.3
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97.0
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96.0
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93.9
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90.0
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85.5
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11.0
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97.7
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97.0
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96.7
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95.7
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93.4
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89.1
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84.0
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16.0
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97.4
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96.6
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96.3
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95.1
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92.4
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87.4
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81.4
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22.0
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96.8
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95.9
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95.5
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94.1
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90.8
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84.3
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76.4
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29.0
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96.5
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95.5
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95.0
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93.5
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89.8
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82.4
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73.1
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| SUBJECTIVE QUALITY FACTOR @35 |
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A+
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A
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B+
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B
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C+
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C
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D
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F
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KEY
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|
Size
|
3.5x5
|
4x6
|
5x7
|
8x10
|
11x14
|
16x20
|
20x24
|
|
4.0
|
97.4
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96.6
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96.2
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95.1
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92.4
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87.0
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80.4
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5.6
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97.7
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97.0
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96.7
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95.7
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93.4
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88.9
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83.5
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8.0
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98.0
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97.3
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97.1
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96.1
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94.0
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90.3
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85.9
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|
11.0
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97.8
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97.1
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96.8
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95.8
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93.5
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89.3
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84.4
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16.0
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97.5
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96.7
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96.3
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95.2
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92.5
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87.6
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81.6
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22.0
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96.9
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95.9
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95.5
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94.1
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90.8
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84.3
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76.4
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32.0
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96.3
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95.2
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94.7
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93.1
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89.2
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80.5
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69.6
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