Sigma 17-70 Sharpness Test at 70mm. (at 70mm.)

Test # 535
Lens Test
Sigma 17-70 Sharpness Test at 70mm.
at 70mm. Tested Apertures Between F4.0 to F13.0
	Test by Sinan Ozturk

PhotoAgainst Photo Editor's Comment: In our official sharpness test we shoot chart that consists of 1 and 5 American Dolars. We take 3 crops from the very top left corner, center and between center and top left corner.

We shoot with every aperture from lens' widest aperture to F13. For zoom lenses we do the test for their both wide and tele focal lengths.

Unlike our other comparisons, these sharpness shots are taken in different times and lighting conditions might be different. So please consider only lenses' sharpness in these tests (we recommend analyzing black and white crops we provide) as contrast and color cast might not be very accurate in these comparisons. After reviewing the test, scroll to the bottom of the page to compare Sigma 17-70's Sharpness with other lenses.

Comparison Photo # 1

Photo_1118Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_1117 Sigma 17-70 F/2.8-4 DS Macro HSM

F4.5

1/5

100

70mm.

F4.0

1/6

100

70mm.

Photo by Sinan Ozturk

100% (1:1) Crop Samples

Sigma 17-70 F/2.8-4 DS Macro HSM Center F/4.5 Brightness 132 (Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM Corner (Top Left) F/4.5 Brightness 106 (Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM Between Center and Top Left Corner F/4.5 Brightness 117 (Almost Same)

	Sigma 17-70 F/2.8-4 DS Macro HSM Center F/4.0 Brightness 134 (Almost Same)
	Sigma 17-70 F/2.8-4 DS Macro HSM Corner (Top Left) F/4.0 Brightness 96 (Almost Same)
	Sigma 17-70 F/2.8-4 DS Macro HSM Between Center and Top Left Corner F/4.0 Brightness 114 (Almost Same)

Display crops in Black & White

EXIF

Comparison Photo # 2

Photo_1119Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_1117 Sigma 17-70 F/2.8-4 DS Macro HSM

F5.0

1/4

100

70mm.

F4.0

1/6

100

70mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Sigma 17-70 F/2.8-4 DS Macro HSM Center F/5.0 Brightness 137 (Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM Corner (Top Left) F/5.0 Brightness 115 7% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Between Center and Top Left Corner F/5.0 Brightness 124 (Almost Same)

	Sigma 17-70 F/2.8-4 DS Macro HSM Center F/4.0 Brightness 134 (Almost Same)
	Sigma 17-70 F/2.8-4 DS Macro HSM Corner (Top Left) F/4.0 Brightness 96 7% Darker
	Sigma 17-70 F/2.8-4 DS Macro HSM Between Center and Top Left Corner F/4.0 Brightness 114 (Almost Same)

Display crops in Black & White

EXIF

Comparison Photo # 3

Photo_1120Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_1117 Sigma 17-70 F/2.8-4 DS Macro HSM

F5.6

1/3

100

70mm.

F4.0

1/6

100

70mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Sigma 17-70 F/2.8-4 DS Macro HSM Center F/5.6 Brightness 143 (Almost Same)
Sigma 17-70 F/2.8-4 DS Macro HSM Corner (Top Left) F/5.6 Brightness 126 11% Brighter
Sigma 17-70 F/2.8-4 DS Macro HSM Between Center and Top Left Corner F/5.6 Brightness 131 6% Brighter

	Sigma 17-70 F/2.8-4 DS Macro HSM Center F/4.0 Brightness 134 (Almost Same)
	Sigma 17-70 F/2.8-4 DS Macro HSM Corner (Top Left) F/4.0 Brightness 96 11% Darker
	Sigma 17-70 F/2.8-4 DS Macro HSM Between Center and Top Left Corner F/4.0 Brightness 114 6% Darker

Display crops in Black & White

EXIF

Comparison Photo # 4

Photo_1121Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_1117 Sigma 17-70 F/2.8-4 DS Macro HSM

F6.3

4/10

100

70mm.

F4.0

1/6

100

70mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Login or Register to display 3 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/6.3 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/4.0 for locations Center, Corner (Top Left), Between Center and Top Left Corner

EXIF

Comparison Photo # 5

Photo_1122Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_1117 Sigma 17-70 F/2.8-4 DS Macro HSM

F7.1

5/10

100

70mm.

F4.0

1/6

100

70mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Login or Register to display 3 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/7.1 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/4.0 for locations Center, Corner (Top Left), Between Center and Top Left Corner

EXIF

Comparison Photo # 6

Photo_1123Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_1117 Sigma 17-70 F/2.8-4 DS Macro HSM

F8.0

6/10

100

70mm.

F4.0

1/6

100

70mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Login or Register to display 3 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/8.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/4.0 for locations Center, Corner (Top Left), Between Center and Top Left Corner

EXIF

Comparison Photo # 7

Photo_1124Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_1117 Sigma 17-70 F/2.8-4 DS Macro HSM

F9.0

8/10

100

70mm.

F4.0

1/6

100

70mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Login or Register to display 3 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/9.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/4.0 for locations Center, Corner (Top Left), Between Center and Top Left Corner

EXIF

Comparison Photo # 8

Photo_1125Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_1117 Sigma 17-70 F/2.8-4 DS Macro HSM

F11.0

13/10

100

70mm.

F4.0

1/6

100

70mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Login or Register to display 3 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/11.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/4.0 for locations Center, Corner (Top Left), Between Center and Top Left Corner

EXIF

Comparison Photo # 9

Photo_1126Sigma 17-70 F/2.8-4 DS Macro HSM

against

Photo_1117 Sigma 17-70 F/2.8-4 DS Macro HSM

F13.0

16/10

100

70mm.

F4.0

1/6

100

70mm.

Click to expand comparison photos.

100% (1:1) Crop Samples

Login or Register to display 3 crops from Sigma 17-70 F/2.8-4 DS Macro HSM F/13.0 vs. Sigma 17-70 F/2.8-4 DS Macro HSM F/4.0 for locations Center, Corner (Top Left), Between Center and Top Left Corner

EXIF

PhotoAgainstPhoto.com Official Sharpness Test
You can select 2 lens to compare their sharpness side by side:
against

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	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
	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
	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, F7.1
	Sigma 17-70 vs. Tamron 18-200 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1
	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, F7.1
	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, F7.1
	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, F5.6, F6.3, F7.1
	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, F7.1
	Cosina 19-35 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F4, F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1
	Tamron 17-50 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F2.8/F3.2, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
	Minolta 28-105 vs. Sigma 17-70 Sharpness at 28mm. Tested Apertures F3.2/F3.5, F3.5, F4, F4.5, F5, F5.6, F6.3, F7.1
	Sigma 17-70 vs. Minolta 35-105mm. Sharpness at 35mm. Tested Apertures F3.5/F4, F4, F4.5, F5, F5.6, F6.3, F7.1, F8
	Sigma 17-70 vs. Minolta 28-105 Sharpness at 35mm. Tested Apertures F3.5/F4, 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. 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

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