What is the crop factor of the Nikon D40?
The Nikon D40 is equipped with an APS-C sensor, whose diagonal measures 28.4mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 1.5.
The crop factor is defined as the ratio of the 35mm full-frame film diagonal to the diagonal of a digital sensor. This number indicates how a lens behaves in relation to the size of the image sensor.
Sensor size comparison with a film slide
With a crop factor of 1.5, the sensor in the Nikon D40 is smaller than the receptor area of a 35mm film slide or negative. As a result, a lens that is attached to the Nikon D40 will offer a narrower angle of view and provide deeper depth of field than a lens of similar focal length and aperture on a film camera. The equivalent focal length is obtained by multiplying the actual focal length of the lens with the crop factor. For example, a 33mm lens on the Nikon D40 will provide the same angle of view and depth of field as a 50mm normal lens on a film camera (33mm * 1.5 = 50mm).
Sensor specs and performance
The table below compares the sensor specs of the Nikon D40 to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better), covering color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Nikon D40 | APS-C | 6.0 | 3008 | 2000 | none | 21.0 | 11.0 | 561 | 56 | |
2. | Nikon D40X | APS-C | 10.0 | 3872 | 2592 | none | 22.4 | 11.4 | 516 | 63 | |
3. | Nikon D50 | APS-C | 6.0 | 3008 | 2000 | none | 20.9 | 10.8 | 560 | 55 | |
4. | Nikon D60 | APS-C | 10.0 | 3872 | 2592 | none | 22.5 | 11.4 | 562 | 65 | |
5. | Nikon D70 | APS-C | 6.0 | 3008 | 2000 | none | 20.4 | 10.3 | 529 | 50 | |
6. | Nikon D70s | APS-C | 6.0 | 3008 | 2000 | none | 20.4 | 10.3 | 529 | 50 | |
7. | Nikon D80 | APS-C | 10.0 | 3872 | 2592 | none | 22.1 | 11.2 | 524 | 61 | |
8. | Nikon D3000 | APS-C | 10.0 | 3872 | 2592 | none | 22.3 | 11.1 | 563 | 62 | |
9. | Nikon D3100 | APS-C | 14.2 | 4608 | 3072 | 1080/24p | 22.5 | 11.3 | 919 | 67 | |
10. | Nikon D3300 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.3 | 12.8 | 1385 | 82 | |
11. | Nikon D3400 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.8 | 13.9 | 1192 | 86 |
In the United States, the D40 was initially launched in November 2006 at a price of $499.
Camera to camera comparisons
In case you are interested in seeing how this camera compares to another one, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Camera Model | Nikon D40 | |
---|---|---|
Camera Type | Digital single lens reflex | |
Camera Lens | Nikon F mount lenses | |
Launch Date | November 2006 | |
Launch Price | USD 499 | |
Sensor Specs | ||
Sensor Technology | CCD | |
Sensor Format | APS-C Sensor | |
Sensor Size | 23.7 x 15.6 mm | |
Sensor Area | 370 mm2 | |
Sensor Diagonal | 28.4 mm | |
Crop Factor | 1.5x | |
Sensor Resolution | 6 Megapixels | |
Image Resolution | 3 008 x 2 000 pixels | |
Pixel Pitch | 7.85 μm | |
Pixel Density | 1.63 MP/cm2 | |
Moiré control | Anti-Alias filter | |
Movie Capability | no Video | |
ISO Setting | 200 - 1 600 ISO | |
ISO Boost | 200 - 3 200 ISO | |
DXO Sensor Quality (score) | 56 | |
DXO Color Depth (bits) | 21.0 | |
DXO Dynamic Range (EV) | 11.0 | |
DXO Low Light (ISO) | 561 | |
Screen Specs | ||
Viewfinder Type | Optical viewfinder | |
Viewfinder Field of View | 95% | |
Viewfinder Magnification | 0.53x | |
Top-Level Screen | no Top Display | |
LCD Size | 2.5 inch | |
LCD Resolution | 230k dots | |
LCD Attachment | Fixed screen | |
Touch Input | No touchscreen | |
Shooting Specs | ||
Focus System | Phase-detect AF | |
Manual Focusing Aid | no Peaking Feature | |
Maximum Shutter Speed | 1/4000s | |
Continuous Shooting | 2.5 shutter flaps/s | |
Shutter Life Expectancy | 50 000 actuations | |
Silent Shooting | no E-Shutter | |
Time Lapse Photography | no Intervalometer | |
Fill Flash | Built-in Flash | |
Storage Medium | SDHC cards | |
Single or Dual Card Slots | Single card slot | |
UHS card support | no | |
Connectivity Specs | ||
External Flash | Hotshoe | |
USB Connector | USB 2.0 | |
HDMI Port | no HDMI | |
Wifi Support | no Wifi | |
Body Specs | ||
Battery Type | Nikon EN-EL9 power pack | |
Battery Life (CIPA) | 470 shots per charge | |
Body Dimensions |
124 x 94 x 64 mm (4.9 x 3.7 x 2.5 in) |
|
Camera Weight | 522 g (18.4 oz) |
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