Nikkor AF-S 18-70mm f/3.5-4.5 G IF-ED DX - Review / Test Report
Lens Reviews - Nikon / Nikkor (APS-C)

Lens kindly provided for testing purposes by Martin Henke!

Introduction

The Nikkor AF-S 18-70mm f/3.5-4.5 G IF-ED DX is considered as THE standard zoom for Nikon DSLRs thanks to attractive specifications combined with a moderate price tag of around 350 US$/€. Nikon also sells this lens in some camera kits (D70s, D200).
The Nikkor is a designated DX lens projecting a reduced image circle and as such not compatible to full-frame SLRs. The field-of-view is equivalent to 27-105mm (3.8x zoom ratio) on classic full frame cameras.

The build quality is very decent. Nikon used higher quality plastics compared to e.g. the AF-S 18-55mm DX but it can't match the (excessively higher priced) AF-S 17-55mm f/2.8 DX here. Interestingly the lens features a dust and waterproof rubber sealing mount which is highly unusual in this price class. The zoom ring has a relatively high friction whereas the focus ring feels quite smooth (though a little plasticy). As you can observe in the product shot above the lens has a duo-cam zooming mechanism which extends towards the long end of the zoom range. The inner lens tubes/cams wobble only marginally. A petal-shaped hood (not shown) is also part of the standard package. Typical for all G lenses the Nikkor does not provide a dedicated aperture ring anymore. The Nikkor features an AF-S motor (silent-wave (ultrasonic)) which is both very fast and near silent. It is also possible to intervene manually in S-AF mode. Thanks to an IF (internal focusing) design the front element does not rotate so using a polarizer remains easily possible.

Specifications
Equiv. focal length27-105 mm (full format equivalent)
Equiv. aperturef/5.3-f/6.8 (full format equivalent, in terms of depth-of-field)
Optical construction15 elements in 13 groups inc. 1 aspherical and 3 ED elements
Number of aperture blades7 (rounded)
min. focus distance0.38 m (max. magnification ratio 1:6.2)
Dimensions73 x 76 mm
Weight390 g
Filter size67 mm (non-rotating)
HoodNikon HB-32 (supplied), petal-shaped
Par focalyes
Other featuresLens provides distance (D) information to the camera. Dust and waterproof rubber sealing mount.




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