Nikon D40 with AF-S Nikkor 18-55mm 1:3.5-5.6 G II ED - Nikon D40 wide-angle geometry comparison

Nikon D40 wide-angle geometry comparison


Nikon D40 results continued…

Nikon D40 wide angle geometry test

Outdoor / Resolution / Noise / Noise 2 / Corner sharpness / Fringe & macro / Geometry / Vignetting

 

To measure and compare the Nikon D40’s kit lens geometric distortion we photographed a test chart consisting of a grid pattern, using it and a number of rival models.

Here are the results for each camera with their kit lenses at their widest focal length; where possible, the aperture was closed.

The images were analysed with Imatest using 5th Order line calculation and the full areas presented here at a reduced resolution.

The image left was taken with the Nikon D40 using the DX 18-55mm II kit lens zoomed-out to 18mm. Barrel distortion was measured at 3.73% which is more pronounced than the other lenses below, although not a great deal more than the Canon 400D / XTi’s kit lens.

DX 18-55mm II at 18mm f8
Distortion: 3.73% barrel

 

Canon 400D / XTi
Using EF-S 18-55mm
Canon PowerShot G7
Olympus E-400
Using ZD 14-42mm
Canon 400D with 18-55mm
Canon PowerShot G7
Olympus E-400 with 14-42mm
EF-S 18-55mm at 18mm f8
Distortion: 3.35% barrel
  7.4-44.4mm at 7.4mm
Distortion: 3.34% barrel
  ZD 14-42mm at 14mm f8
Distortion: 2.97% barrel



Nikon D40 telephoto geometry comparison

Nikon D40 telephoto geometry test  

To measure and compare the Nikon D40’s kit lens geometric distortion we photographed a test chart consisting of a grid pattern, using it and a number of rival models.

Here are the results for each camera with their kit lenses at their longest focal length; where possible, the aperture was closed.

The images were analysed with Imatest using 5th Order line calculation and the full areas presented here at a reduced resolution.

DX 18-55mm II at 55mm f8
Distortion: 0.21% barrel
 
The image above was taken with the Nikon D40 using the DX 18-55mm II kit lens zoomed-in to 55mm. Barrel distortion was measured at 0.21% which is a lower degree of distortion than the two Canon models below – albeit in the other direction – and equal to the latest Olympus kit lens.

Canon 400D / XTi
Using EF-S 18-55mm
Canon PowerShot G7
Olympus E-400
Using ZD 14-42mm
Canon 400D with 18-55mm telephoto geometry test
Canon PowerShot G7
Olympus E-400 with 14-42mm
EF-S 18-55mm EF-S at 55mm f8
Distortion: 0.389% pincushion
  7.4-44.4mm at 44.4mm f5.6
Distortion: 0.28% pincushion
  ZD 14-42mm at 42mm f8
Distortion: 0.21% barrel
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