Sony E.16-50 vs. Sigma 17-70 Sharpness Comparison (at 35mm.)

Comparison # 1471
Lens Sharpness Comparison
Sony E.16-50 vs. Sigma 17-70
Sharpness at 35mm. Tested Apertures F3.5/F5.6, F4/F5.6, F5.6, F6.3, F8
	Comparison by Sinan Ozturk

Comparison Photo # 1

Photo_3166Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_3180 Sony SEL PZ 16-50 F/3.5-5.6 OSS

F3.5

1/250

100

35mm.

F5.6

1/200

100

35mm.

Photo by Sinan Ozturk

100% (1:1) Crop Samples

Sigma 17-70 F/2.8-4 DS Macro HSM Focus Point F/3.5 Brightness 147 11% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Between Center and Top Left Corner F/3.5 Brightness 91 7% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Center F/3.5 Brightness 162 12% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Around Center F/3.5 Brightness 86 7% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Border (Bottom) F/3.5 Brightness 206 8% Brighter

	Sony SEL PZ 16-50 F/3.5-5.6 OSS Focus Point F/5.6 Brightness 121 11% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Between Center and Top Left Corner F/5.6 Brightness 75 7% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Center F/5.6 Brightness 133 12% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Around Center F/5.6 Brightness 70 7% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Border (Bottom) F/5.6 Brightness 187 8% Darker

Display crops in Black & White

EXIF

Comparison Photo # 2

Photo_3167Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_3180 Sony SEL PZ 16-50 F/3.5-5.6 OSS

F4.0

1/200

100

35mm.

F5.6

1/200

100

35mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Sigma 17-70 F/2.8-4 DS Macro HSM Focus Point F/4.0 Brightness 134 6% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Between Center and Top Left Corner F/4.0 Brightness 87 5% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Center F/4.0 Brightness 149 6% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Around Center F/4.0 Brightness 76 (Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM Border (Bottom) F/4.0 Brightness 203 7% Brighter

	Sony SEL PZ 16-50 F/3.5-5.6 OSS Focus Point F/5.6 Brightness 121 6% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Between Center and Top Left Corner F/5.6 Brightness 75 5% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Center F/5.6 Brightness 133 6% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Around Center F/5.6 Brightness 70 (Almost Same)
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Border (Bottom) F/5.6 Brightness 187 7% Darker

Display crops in Black & White

EXIF

Comparison Photo # 3

Photo_3168Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_3180 Sony SEL PZ 16-50 F/3.5-5.6 OSS

F5.6

1/125

100

35mm.

F5.6

1/200

100

35mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Sigma 17-70 F/2.8-4 DS Macro HSM Focus Point F/5.6 Brightness 141 8% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Between Center and Top Left Corner F/5.6 Brightness 94 8% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Center F/5.6 Brightness 155 9% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Around Center F/5.6 Brightness 82 5% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Border (Bottom) F/5.6 Brightness 196 (Almost Same)

	Sony SEL PZ 16-50 F/3.5-5.6 OSS Focus Point F/5.6 Brightness 121 8% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Between Center and Top Left Corner F/5.6 Brightness 75 8% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Center F/5.6 Brightness 133 9% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Around Center F/5.6 Brightness 70 5% Darker
	Sony SEL PZ 16-50 F/3.5-5.6 OSS Border (Bottom) F/5.6 Brightness 187 (Almost Same)

Display crops in Black & White

EXIF

Comparison Photo # 4

Photo_3169Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_3181 Sony SEL PZ 16-50 F/3.5-5.6 OSS

F6.3

1/80

100

35mm.

F6.3

1/125

100

35mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Login or Register to display 5 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/6.3 vs. Sony SEL PZ 16-50 F/3.5-5.6 OSS F/6.3 for locations Focus Point, Between Center and Top Left Corner, Center, Around Center, Border (Bottom)

EXIF

Comparison Photo # 5

Photo_3170Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_3182 Sony SEL PZ 16-50 F/3.5-5.6 OSS

F8.0

1/60

100

35mm.

F8.0

1/80

100

35mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Login or Register to display 5 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/8.0 vs. Sony SEL PZ 16-50 F/3.5-5.6 OSS F/8.0 for locations Focus Point, Between Center and Top Left Corner, Center, Around Center, Border (Bottom)

EXIF

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Sharpness at 35mm.
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Sharpness at 35mm.
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Sharpness at 35mm.
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Sharpness at 35mm.
Tested Apertures F2.8/F5.6, F4/F5.6, F5.6, F6.3, F8

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Sharpness at 35mm.
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Sharpness at 35mm.
Tested Apertures F2.8/F5.6, F4/F5.6, F5.6, F6.3, F8

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	Sigma 17-70 vs. Sony 35mm 1.8 Sharpness at 35mm. Tested Apertures F1.8/F3.5, F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Tamron 17-50 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Cosina 19-35 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sony 16-50 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sony 16-105 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Minolta 28-70 2.8 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sony 18-55 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Minolta 35-105mm. Sharpness at 70mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sony 55-300 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sony 16-105 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Minolta 28-70 2.8 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Tamron 60 Sharpness at 60mm. Tested Apertures F2/F4, F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 60mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sony 16-105 Sharpness at 60mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Minolta 35-105mm. Sharpness at 60mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sony 55-300 Sharpness at 60mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Minolta 28-70 2.8 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 70mm. Tested Apertures F8
	Sigma 17-70 vs. Sony 55-300 Sharpness at 55mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Minolta 35-105mm. Sharpness at 55mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Sony 18-55 Sharpness at 55mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sony 16-105 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Minolta 28-70 2.8 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Minolta 35-105mm. Sharpness at 35mm. Tested Apertures F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Cosina 19-35 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sony 16-105 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sony 35mm 1.8 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F1.8/F3.5, F2/F3.5, F2.2/F3.5, F2.5/F3.5, F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Tamron 17-50 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.2/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sony 16-50 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.2/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Minolta 28-70 2.8 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.2/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sony 18-55 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.2/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 70mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F8, F10
	Sigma 17-70 vs. Minolta 35-105mm. Sharpness at 70mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F8, F10
	Sigma 17-70 vs. Sony 16-105 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F8, F10
	Sigma 17-70 vs. Minolta 28-70 2.8 Sharpness at 70mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F8, F10
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F8, F10
	Sigma 17-70 vs. Minolta 35-105mm. Sharpness at 50mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F6.3, F7.1, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Sony 18-55 Sharpness at 50mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F6.3, F7.1, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Tamron 17-50 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 50mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F6.3, F7.1, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Sony 16-50 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Sony 16-105 Sharpness at 50mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F6.3, F7.1, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Minolta 50mm 1.4 Sharpness at 50mm. Tested Apertures F1.4/F4, F1.6/F4, F1.7/F4, F2/F4, F2.2/F4, F2.5/F4, F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Minolta 28-70 2.8 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	Sigma 17-70 vs. Sigma 50mm 2.8 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9, F10, F11
	CZ Jena Pancolar 50mm 1.8 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F6.3, F7.1/F8, F7.1/F8, F8, F9, F10/F11, F11
	Sigma 17-70 vs. Minolta 35-105mm. Sharpness at 35mm. Tested Apertures F3.5, F4, F4.5, F5, F5.6, F6.3, F8, F11
	Sigma 17-70 vs. Sony 35mm 1.8 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F8, F11
	Sigma 17-70 vs. Cosina 19-35 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F8, F11
	Sigma 17-70 vs. Sony 18-55 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F8, F11
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F8, F11
	Sony 16-105 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F8, F11
	Tamron 17-50 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F8, F11
	Sony 16-50 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F8, F11
	Minolta 28-70 2.8 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F8, F11
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F8, F11
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 50mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Minolta 50mm 1.4 Sharpness at 50mm. Tested Apertures F1.4/F4, F1.7/F4, F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sony 18-55 Sharpness at 50mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sony 16-50 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Tamron 17-50 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sony 16-105 Sharpness at 50mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 50mm 2.8 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Minolta 28-70 2.8 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Tamron 60 Sharpness at 60mm. Tested Apertures F2/F4, F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F8
	Sigma 17-70 vs. Minolta 28-70 2.8 Sharpness at 60mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F8
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F8
	Sony 16-105 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F8
	Sony 18-200 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F8
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F8
	Sigma 17-70 vs. Minolta 28-70 2.8 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 35mm 1.8 Sharpness at 35mm. Tested Apertures F1.8/F3.5, F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 18-55 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Tamron 17-50 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sony 18-200 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sony 16-105 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Sony 16-50 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3
	Sigma 17-70 vs. Minolta 28-70 2.8 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3
	Sigma 17-70 vs. Minolta 28mm 2.8 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3
	Sigma 17-70 vs. Sony 16-50 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3
	Sigma 17-70 vs. Tamron 17-50 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3
	Sony 18-55 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3
	Sony 16-105 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3
	Sony 18-200 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3
	Sigma 17-70 vs. Minolta 28-70 2.8 Sharpness at 70mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13
	Sony 16-105 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F10, F13
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F10, F13
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10, F13
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Minolta 28-70 2.8 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sony 16-50 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sony 18-55 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Tamron 17-50 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sony 16-105 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sony 18-200 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Minolta 28-70 2.8 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sony 16-50 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Tamron 17-50 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sony 16-105 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F10
	Sony 18-55 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F10
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sony 18-200 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sigma 50mm 2.8 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Minolta 50mm 1.4 Sharpness at 50mm. Tested Apertures F2/F4, F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 18-200 Sharpness at 50mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sony 18-55 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
	Tamron 17-50 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sony 16-50 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sony 16-105 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Minolta 28-70 2.8G vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 55-300 Sharpness at 55mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 18-55 Sharpness at 55mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Minolta 28-70 2.8G Sharpness at 55mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 55mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Sony 16-105 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Sony 18-200 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Minolta 28-70 2.8G Sharpness at 70mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 70mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 18-200 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
	Sony 16-105 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
	Sony 55-300 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 18-200 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 35mm 1.8 Sharpness at 35mm. Tested Apertures F1.8/F3.5, F2/F3.5, F2.2/F3.5, F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Cosina 19-35 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Tamron 17-50 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 16-105 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 18-55 Sharpness at 35mm. Tested Apertures F3.5/F5, F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Sony 16-50 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Minolta 28-70 2.8G vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 35mm. Tested Apertures F2.8/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Minolta 28-70 2.8G Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F6.3, F8, F10
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F6.3, F8, F10
	Sigma 17-70 vs. Sony 16-105 Sharpness at 28mm. Tested Apertures F3.2/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F6.3, F8, F10
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F6.3, F8, F10
	Sigma 17-70 vs. Sony 16-50 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F6.3, F8, F10
	Sigma 17-70 vs. Sony 18-55 Sharpness at 28mm. Tested Apertures F3.2/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F6.3, F8, F10
	Sigma 17-70 vs. Tamron 17-50 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F6.3, F8, F10
	Cosina 19-35 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F6.3, F8, F10
	Minolta 28mm 2.8 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F6.3, F8, F10
	Sony 18-200 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F6.3, F8, F10
	Sigma 17-70 vs. Tamron 60 Sharpness at 60mm. Tested Apertures F2/F4, F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Minolta 28-70 2.8G Sharpness at 60mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 60mm. Tested Apertures F2.8/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 55-300 Sharpness at 60mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Sony 18-200 Sharpness at 60mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8
	Sony 16-105 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8
	Sony 16-105 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F9
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F9
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F2.8/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F9
	Sony 18-200 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F9
	Sony 55-300 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F9
	Sony E 55-210 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F9
	Sigma 17-70 vs. Sony E 55-210 Sharpness at 70mm. Tested Apertures F4/F5.6, F5.6, F6.3, F8, F10
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 70mm. Tested Apertures F4/F5.6, F5.6, F6.3, F8, F10
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F2.8/F4, F5.6, F6.3, F8, F10
	Sony 18-200 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F5.6, F6.3, F8, F10
	Sony 16-105 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F5.6, F5.6, F6.3, F8, F10
	Sony 55-300 vs. Sigma 17-70 Sharpness at 70mm. Tested Apertures F4/F4.5, F5.6, F6.3, F8, F10
	Sigma 17-70 vs. Samsung 18-55 Sharpness at 50mm. Tested Apertures F4/F5.6, F5/F5.6, F5.6, F6.3, F8, F10
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 50mm. Tested Apertures F4/F5, F5, F5.6, F6.3, F8, F10
	Sigma 17-70 vs. Sigma 50mm 2.8 Sharpness at 50mm. Tested Apertures F2.8/F4, F4, F5, F5.6, F6.3, F8, F10
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F4, F5, F5.6, F6.3, F8, F10
	Sony 16-105 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F5, F5, F5.6, F6.3, F8, F10
	Sony 18-55 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F5.6, F5/F5.6, F5.6, F6.3, F8, F10
	Sony 18-200 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F4/F5, F5, F5.6, F6.3, F8, F10
	Minolta 50mm 1.4 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F1.4/F4, F2.8/F4, F4, F5, F5.6, F6.3, F8, F10
	Tamron 17-50 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F4, F5, F5.6, F6.3, F8, F10
	Sony 16-50 vs. Sigma 17-70 Sharpness at 50mm. Tested Apertures F2.8/F4, F4, F5, F5.6, F6.3, F8, F10
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 18mm. Tested Apertures F2.8/F3.5, F6.3, F8, F16
	Sigma 17-70 vs. Sony 18-55 Sharpness at 18mm. Tested Apertures F2.8/F3.5, F6.3, F8, F16
	Sigma 17-70 vs. Sony 16-105 Sharpness at 18mm. Tested Apertures F2.8/F3.5, F6.3, F8, F16
	Sony 16-50 vs. Sigma 17-70 Sharpness at 18mm. Tested Apertures F2.8, F6.3, F8, F16
	Sony 18-200 vs. Sigma 17-70 Sharpness at 18mm. Tested Apertures F2.8/F3.5, F6.3, F8, F16
	Tamron 17-50 vs. Sigma 17-70 Sharpness at 18mm. Tested Apertures F2.8, F6.3, F8, F16
	Samsung 18-55 vs. Sigma 17-70 Sharpness at 18mm. Tested Apertures F2.8/F3.5, F6.3, F8, F16
	Sigma 17-70 vs. Tamron 60 Sharpness at 60mm. Tested Apertures F2/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Sony 16-105 Sharpness at 60mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 60mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F10
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 60mm. Tested Apertures F2.8/F4, F4, F4.5, F5, F5.6, F6.3, F8, F10
	Sony 18-200 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F10
	Sony 55-300 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F10
	Sony E 55-210 vs. Sigma 17-70 Sharpness at 60mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6/F6.3, F6.3, F7.1, F8, F10
	Nikon P300's Lens vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Samsung 18-55 Sharpness at 55mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F11
	Sigma 17-70 vs. Sony E 55-210 Sharpness at 55mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F11
	Sigma 17-70 vs. Tokina 28-70 2.8 Sharpness at 55mm. Tested Apertures F2.8/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8, F11
	Sony 55-300 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F4.5, F4.5, F5, F5.6, F6.3, F7.1, F8, F11
	Sony 18-200 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F11
	Sony 18-55 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F5.6, F4.5/F5.6, F5/F5.6, F5.6, F6.3, F7.1, F8, F11
	Tamron 18-200 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F11
	Sony 16-105 vs. Sigma 17-70 Sharpness at 55mm. Tested Apertures F4/F5, F4.5/F5, F5, F5.6, F6.3, F7.1, F8, F11
	Sigma 17-70 vs. Minolta 28mm 2.8 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F8
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F5.6, F8
	Sigma 17-70 vs. Tamron 17-50 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F8
	Sigma 17-70 vs. Cosina 19-35 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F5.6, F8
	Sigma 17-70 vs. Sony 18-55 Sharpness at 28mm. Tested Apertures F3.2/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F8
	Sony 16-105 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F4.5, F3.5/F4.5, F4/F4.5, F4.5, F5, F5.6, F8
	Sony 18-200 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F5.6, F8
	Sony 16-50 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F8
	Tokina 28-70 2.8 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F8