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How many Megapixels does the Canon 5D Mark III have?

The Canon EOS 5D Mark III is equipped with a a full frame sensor that offers an image resolution of 22.1 megapixels (MP), or 22.1 million pixels. With its native aspect ratio of 3:2, the sensor has 5 760 horizontal pixels and 3 840 vertical pixels.

A 35mm film slide or negative contains 5-15 MP of useful detail, so that the Canon 5D Mark III can be considered to be a high-resolution camera that outresolves any 35mm film camera.

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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 22.1 MP?

The maximum print size of the Canon 5D Mark III for good quality output (200 dots per inch) amounts to 28.8 x 19.2 inches or 73.2 x 48.8 cm, for very good quality (250 dpi) 23 x 15.4 inches or 58.5 x 39 cm, and for excellent quality (300 dpi) 19.2 x 12.8 inches or 48.8 x 32.5 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 Canon 5D Mark III 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.
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381
2.
 
Canon 6D Mark II Full Frame 26.0 6240 41601080/60p24.411.9286285
3.
 
Canon 1D X Mark II Full Frame 20.0 5472 36484K/60p24.113.5320788
4.
 
Canon 5D Mark IV Full Frame 30.1 6720 44804K/30p24.813.6299591
5.
 
Canon 5DS Full Frame 50.3 8688 57921080/30p24.712.4238187
6.
 
Canon 5DS R Full Frame 50.3 8688 57921080/30p24.612.4230886
7.
 
Canon 7D II APS-C 20.0 5472 36481080/60p22.411.8108270
8.
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
9.
 
Canon 6D Full Frame 20.0 5472 36481080/30p23.812.1234082
10.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
11.
 
Canon 5D Full Frame 12.7 4368 2912none22.911.1136871
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Further information on the sensor in the Canon 5D Mark III and the camera's operation can be found in the camera manual.

In the United States, the 5D Mark III was initially launched in March 2012 at a price of $3,499.

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Camera to camera comparisons

If you would like to see a side-by-side review with another camera, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications Summary
    Camera Model Canon 5D Mark III
    Camera Type Digital single lens reflex
    Camera Lens Canon EF mount lenses
    Launch Date March 2012
    Launch Price USD 3 499
    Sensor Specs
    Sensor Technology CMOS
    Sensor Format Full Frame Sensor
    Sensor Size 36.0 x 24.0 mm
    Sensor Area 864 mm2
    Sensor Diagonal 43.3 mm
    Crop Factor 1.0x
    Sensor Resolution 22.1 Megapixels
    Image Resolution 5 760 x 3 840 pixels
    Pixel Pitch 6.25 μm
    Pixel Density 2.56 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability 1080/30p Video
    ISO Setting 100 - 25 600 ISO
    ISO Boost 50 - 102 400 ISO
    Image Processor DIGIC 5+
    DXO Sensor Quality (score) 81
    DXO Color Depth (bits) 24.0
    DXO Dynamic Range (EV) 11.7
    DXO Low Light (ISO) 2293
    Screen Specs
    Viewfinder Type Optical viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.71x
    Top-Level Screen Control Panel
    LCD Framing Live View
    LCD Size 3.2 inch
    LCD Resolution 1040k dots
    LCD Attachment Fixed screen
    Touch Input No touchscreen
    Shooting Specs
    Focus System Phase-detect AF
    Manual Focusing Aidno Peaking Feature
    Maximum Shutter Speed 1/8000s
    Continuous Shooting 6 shutter flaps/s
    Shutter Life Expectancy150 000 actuations
    Silent Shootingno E-Shutter
    Time Lapse Photographyno Intervalometer
    Fill Flash no On-Board Flash
    Storage Medium CF or SDXC cards
    Single or Dual Card Slots Dual card slots
    UHS card support no
    Connectivity Specs
    External Flash Hotshoe
    Studio Flash PC Sync socket
    USB Connector USB 2.0
    HDMI Port mini HDMI
    Microphone Port External MIC port
    Headphone Socket Headphone port
    Wifi Support no Wifi
    Body Specs
    Environmental SealingWeathersealed body
    Battery Type LP-E6 power pack
    Battery Life (CIPA)950 shots per charge
    Body Dimensions 152 x 116 x 76 mm
    (6.0 x 4.6 x 3.0 in)
    Camera Weight 950 g (33.5 oz)

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