Product Comparison: Nikon AF-S DX Zoom-NIKKOR 18-70mm f/3.5-4.5G IF-ED vs Sigma AF 17-70mm F2.8-4 DC Macro OS HSM

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General Specifications
AF-S DX Zoom-NIKKOR 18-70mm f/3.5-4.5G IF-ED
AF 17-70mm F2.8-4 DC Macro OS HSM
About the Product
Compact 3.8X zoom covers portrait to wide view. Optimized DX lens design is compatible with every Nikon D-Series digital SLR cameras. Three Nikon ED glass elements, plus aspheric element for low distortion and minimized chromatic aberration.
The Sigma 17-70mm F2.8-4 was designed to be the ideal all-purpose lens for APS-C sized sensors. With a great focal length and macro capability, the 17-70mm F2.8-4 is also equipped with a Hyper Sonic Motor (HSM) and an Optical Stabilizer (OS) for superior image quality.
Key Specs
Mount Type
Nikon F-Bayonet
Nikon F-Bayonet
Maximum Aperture
3.5 /f
2.8 /f
Minimum Focal Length
18 millimeters
17 millimeters
Maximum Focal Length
70 millimeters
70 millimeters
Lens Type
What customers say about "Key Specs"
Nikon AF-S DX Zoom-NIKKOR 18-70mm f/3.5-4.5G IF-ED Camera Lens
  • It has a pretty reasonable build quality, fairly bright at max aperture.
  • It covers a good focal length range.
  • I liked the metal mount and the focal length range was good.
  • The minimum focal distance surpasses most standard lenses.
  • Fast and quiet focus, good focal range and sharp at mid-telephoto range.
Sigma AF 17-70mm F2.8-4 DC Macro OS HSM Camera Lens
  • It has decent aperture.
  • Amazing autofocus and love the F2.8-F4.0 aperture.
  • The fast aperture is a huge help in low light.
  • The 2.8 aperture, coupled with a speedlight angled to bounce light is perfect.
  • Center sharpness is great at all focal lengths.
Size & Weight
2.9 in.
3.1 in.
2.9 in.
3.1 in.
3 in.
3.2 in.
13.8 oz.
16.4 oz.
What customers say about "Size & Weight"
Nikon AF-S DX Zoom-NIKKOR 18-70mm f/3.5-4.5G IF-ED Camera Lens
  • The pictures are sharp, it's relatively small and light.
  • It's small and lightweight.
  • Perfect carry lens with lightweight and nice picture quality.
  • It is easy to use, lightweight and seems to produce good quality photos.
  • It was lightweight and takes decent pictures.
Sigma AF 17-70mm F2.8-4 DC Macro OS HSM Camera Lens
  • Has a good weight, doesn't feel cheap.
  • Image quality is good. It is lightweight and a good walk-around lens.
  • Nice photos and very lightweight.
  • The weight of the lens is not much and easy to carry.
  • Relatively compact, good build quality.
Minimum Focus Distance
15.6 in.
8.7 in.
Field Of View
76° - 22°50'
79.7° - 22.9°
Zoom Type
Auto Focus, Manual Focus
Auto Focus, Manual Focus
Optical Stabilization
What customers say about "Imaging"
Nikon AF-S DX Zoom-NIKKOR 18-70mm f/3.5-4.5G IF-ED Camera Lens
  • Focus is fast and auto focus and zoom rings are well placed and very usable.
  • The autofocus is fast and accurate, especially for a lens in this price range.
  • It's very contrasty and color retention is great.
  • The AF is quick and silent. Great lens.
  • Autofocus function doesn't work for my D3200.
Sigma AF 17-70mm F2.8-4 DC Macro OS HSM Camera Lens
  • Smooth zoom/focus rings, well damped.
  • OS works as it should and is near silent.
  • The lens focus is extremely sharp.
  • The zoom and focus rings are both very smooth.
  • The autofocus works really well and very quiet.
Brand Compatibility
Sensor Type Compatibility
Lens Groups and Elements
15 Elements in 13 Groups
16 Elements in 14 Groups
Number of Aperture Blades
Filter Diameter
67 millimeters
72 millimeters
Internal Focusing, AF-S (Silent Wave Motor), Super Integrated Coating, Aspherical Lens, ED (Extra-Low Dispersion) Glass
Hyper Sonic Motor, Exclusive low-dispersion glass, Aspherical Lens
What customers say about "Features"
Nikon AF-S DX Zoom-NIKKOR 18-70mm f/3.5-4.5G IF-ED Camera Lens
  • The lens arrived in good condition and worked perfectly with my D300.
  • The construction quality is decent.
  • Construction is good and it feels good when in use.
  • The zoom ring is rather sticky. The focus ring is amazing.
  • The zoom range and the silent wave focus are the best features.
Sigma AF 17-70mm F2.8-4 DC Macro OS HSM Camera Lens
  • This lens is very nicely built.
  • The zoom is well-controlled.
  • The colors are excellent and the soft bokeh is great.
  • Focus is quick and noiseless.
  • It looks stunning and performs stunning. Great quality build.
Warranty / Certifications
Manufacturer Warranty
1 year(s)
1 year(s)
Other Information

Other reviews