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How many Megapixels does the Olympus E-420 have?

The Olympus E-420 is equipped with a a Four Thirds sensor that offers an image resolution of 10 megapixels (MP), or 10 million pixels. With its native aspect ratio of 4:3, the sensor has 3 648 horizontal pixels and 2 736 vertical pixels.

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A high megapixel count makes it possible to crop any captured image substantially or to make very large prints from the image file. On the downside, large megapixel files are slower to transfer and take up more storage space on the computer harddisk. Also, high-resolution imaging requires sharper, more expensive lenses than low-res picture taking.

How large can I print with 10 MP?

The maximum print size of the Olympus E-420 for good quality output (200 dots per inch) amounts to 18.2 x 13.7 inches or 46.3 x 34.7 cm, for very good quality (250 dpi) 14.6 x 10.9 inches or 37.1 x 27.8 cm, and for excellent quality (300 dpi) 12.2 x 9.1 inches or 30.9 x 23.2 cm. Few people actually print their images that large on a regular basis, but it is nice to have the option to make very large prints of exceptional shots. Also, as mentioned earlier, a key advantage of high-MP cameras is that it is possible to crop an image ex-post and thereby, for example, change the composition of the capture or zoom in on some detail.

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Sensor specs and performance

The table below compares the sensor specs of the Olympus E-420 to those of several similar cameras. In addition to sensor class and megapixel count, DXO values are reported as indicators of the sensor's imaging quality (higher is better). Three aspects are covered: 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-420 Four Thirds 10.0 3648 2736none21.510.452756
2.
 
Nikon D40X APS-C 10.0 3872 2592none22.411.451663
3.
 
Nikon D60 APS-C 10.0 3872 2592none22.511.456265
4.
 
Nikon D3000 APS-C 10.0 3872 2592none22.311.156362
5.
 
Olympus E-400 Four Thirds 10.0 3648 2736none21.010.612753
6.
 
Olympus E-410 Four Thirds 10.0 3648 2736none21.110.049451
7.
 
Olympus E-450 Four Thirds 10.0 3648 2736none21.510.551256
8.
 
Olympus E-520 Four Thirds 10.0 3648 2736none21.410.454855
9.
 
Olympus E-600 Four Thirds 12.2 4032 3024none21.510.354155
10.
 
Olympus E-620 Four Thirds 12.2 4032 3024none21.310.353655
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-420 and the camera's operation can be found in the camera manual.

In the United States, the E-420 was initially launched in March 2008 at a price of $599.

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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 make a corresponding selection in the search boxes below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications Summary
    Camera Model Olympus E-420
    Camera Type Digital single lens reflex
    Camera Lens Four Thirds lenses
    Launch Date March 2008
    Launch Price USD 599
    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 III
    DXO Sensor Quality (score) 56
    DXO Color Depth (bits) 21.5
    DXO Dynamic Range (EV) 10.4
    DXO Low Light (ISO) 527
    Screen Specs
    Viewfinder Type Optical viewfinder
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.46x
    Top-Level Screen no Top Display
    LCD Framing Live View
    LCD Size 2.7 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 3.5 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 Olympus 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 440 g (15.5 oz)

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