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What is the pixel pitch of the Olympus E-400?

The Olympus E-400 provides 10 megapixels from a Four Thirds sensor. This pixel density gives rise to a size of the individual pixel of 4.74µm.

The pixel size or pixel pitch can be calculated by dividing the sensor area by the pixel count and then taking the square root. In particular, the sensor in the Olympus E-400 measures 17.3mm in width and 13.0mm in height, so that the total imaging area of the sensor amounts to 225 mm2. Moreover, the E-400 has 3 648 horizontal pixels and 2 736 vertical pixels, for a total of 10 megapixels. Then, the size (height or width) of each individual pixel can be calculated as the square root of the ratio of the sensor area (225 mm2) to the MP count (9 980 928).

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Larger pixels provide advantages with respect to gathering light, particularly in low-light situations. Large pixels notably have a better signal to noise ratio, meaning that they can better differentiate between incoming photons and the noisy signals that the internal processes of the camera create. As a result, big pixels are particularly helpful to the photographer when shooting with high ISO settings.

Sensor specs and performance

The table below compares the sensor specs of the Olympus E-400 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.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Olympus E-400 Four Thirds 10.0 3648 2736none21.010.612753
2.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
3.
 
Olympus E-P3 Four Thirds 12.2 4032 30241080/60i20.810.153651
4.
 
Olympus E-PL2 Four Thirds 12.2 4032 3024720/30p21.410.257355
5.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
6.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
7.
 
Olympus E-420 Four Thirds 10.0 3648 2736none21.510.452756
8.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
9.
 
Olympus E-510 Four Thirds 10.0 3648 2736none21.210.044252
10.
 
Olympus E-500 Four Thirds 8.0 3264 2448none20.710.34551
11.
 
Panasonic L10 Four Thirds 10.0 3648 2736none21.310.842955
Note: DXO values in italics represent estimates based on sensor size and age.
Further information on the sensor in the Olympus E-400 and the camera's operation can be found in the camera manual.

In the United States, the E-400 was initially launched in September 2006 at a price of $699.

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Camera to camera comparisons

In case you would like to check on the differences and similarities with other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications Summary
    Camera Model Olympus E-400
    Camera Type Digital single lens reflex
    Camera Lens Four Thirds lenses
    Launch Date September 2006
    Launch Price USD 699
    Sensor Specs
    Sensor Technology CMOS
    Sensor Format Four Thirds Sensor
    Sensor Size 17.3 x 13.0 mm
    Sensor Area 225 mm2
    Sensor Diagonal 21.6 mm
    Crop Factor 2.0x
    Sensor Resolution 10 Megapixels
    Image Resolution 3 648 x 2 736 pixels
    Pixel Pitch 4.74 μm
    Pixel Density 4.44 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability no Video
    ISO Setting 100 - 1 600 ISO
    Image Processor TruePic
    Screen Specs
    Viewfinder Type Optical viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.46x
    Top-Level Screen no Top Display
    LCD Size 2.5 inch
    LCD Resolution 215k dots
    LCD Attachment Fixed screen
    Touch Input No touchscreen
    Shooting Specs
    Focus System Phase-detect AF
    Manual Focusing Aidno Peaking Feature
    Maximum Shutter Speed 1/4000s
    Continuous Shooting 3 shutter flaps/s
    Shutter Life Expectancy100 000 actuations
    Silent Shootingno E-Shutter
    Time Lapse Photographyno Intervalometer
    Fill Flash Built-in Flash
    Storage Medium CF or XD cards
    Single or Dual Card Slots Dual card slots
    Connectivity Specs
    External Flash Hotshoe
    USB Connector USB 2.0
    HDMI Port no HDMI
    Wifi Support no Wifi
    Body Specs
    Battery Type BLS-1 power pack
    Battery Life (CIPA)500 shots per charge
    Body Dimensions 130 x 91 x 53 mm
    (5.1 x 3.6 x 2.1 in)
    Camera Weight 435 g (15.3 oz)

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