Nikon D40 with AF-S Nikkor 18-55mm 1:3.5-5.6 G II ED
-
-
Written by Gordon Laing
Nikon D40 wide-angle geometry comparison
Nikon D40 results continued…
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 | ||
|
 | 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 | ||
 |  |  | ||
|
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 |
