Nikon D3X vs. Canon EOS-1D X

Comparison

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D3X image
vs
EOS-1D X image
Nikon D3X Canon EOS-1D X
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Megapixels
24.50
18.10
Max. image resolution
6048 x 4032
5184 x 3456

Sensor

Sensor type
CMOS
CMOS
Sensor size
35.9 x 24 mm
36 x 24 mm
Sensor resolution
6062 x 4041
5211 x 3474
Diagonal
43.18 mm
43.27 mm
Sensor size comparison
Sensor size is generally a good indicator of the quality of the camera. Sensors can vary greatly in size. As a general rule, the bigger the sensor, the better the image quality.

Bigger sensors are more effective because they have more surface area to capture light. An important factor when comparing digital cameras is also camera generation. Generally, newer sensors will outperform the older.

Learn more about sensor sizes »

Actual sensor size

Note: Actual size is set to screen → change »
vs
1 : 1
(ratio)
Nikon D3X Canon EOS-1D X
Surface area:
861.60 mm² vs 864.00 mm²
Difference: 2.4 mm² (0.3%)
-1D X sensor is slightly bigger than D3X sensor (only 0.3% difference).
Note: You are comparing cameras of different generations. There is a 3 year gap between Nikon D3X (2008) and Canon -1D X (2011). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
5.92 µm
6.91 µm
Pixel pitch tells you the distance from the center of one pixel (photosite) to the center of the next. It tells you how close the pixels are to each other.

The bigger the pixel pitch, the further apart they are and the bigger each pixel is. Bigger pixels tend to have better signal to noise ratio and greater dynamic range.
Difference: 0.99 µm (17%)
Pixel pitch of -1D X is approx. 17% higher than pixel pitch of D3X.
Pixel area
35.05 µm²
47.75 µm²
Pixel or photosite area affects how much light per pixel can be gathered. The larger it is the more light can be collected by a single pixel.

Larger pixels have the potential to collect more photons, resulting in greater dynamic range, while smaller pixels provide higher resolutions (more detail) for a given sensor size.
Relative pixel sizes:
vs
Pixel area difference: 12.7 µm² (36%)
A pixel on Canon -1D X sensor is approx. 36% bigger than a pixel on Nikon D3X.
Pixel density
2.85 MP/cm²
2.1 MP/cm²
Pixel density tells you how many million pixels fit or would fit in one square cm of the sensor.

Higher pixel density means smaller pixels and lower pixel density means larger pixels.
Difference: 0.75 µm (36%)
Nikon D3X has approx. 36% higher pixel density than Canon -1D X.
To learn about the accuracy of these numbers, click here.



Specs

Nikon D3X
Canon -1D X
Crop factor
1
1
Total megapixels
25.70
19.30
Effective megapixels
24.50
18.10
Optical zoom
Digital zoom
No
No
ISO sensitivity
100, 200, 400, 800, 1600 (50-6400 with boost)
100, 200, 400, 800, 1600, 3200, 6400, 12800, 25600, 51200 (50, 102400 and 204800 with boost)
RAW
Manual focus
Normal focus range
Macro focus range
Focal length (35mm equiv.)
Aperture priority
Yes
Yes
Max. aperture
Max. aperture (35mm equiv.)
n/a
n/a
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Average, Spot
Exposure compensation
±5 EV (in 1/3 EV, 1/2 EV, 1 EV steps)
±5 EV (in 1/3 EV, 1/2 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
30 sec
30 sec
Max. shutter speed
1/8000 sec
1/8000 sec
Built-in flash
External flash
Viewfinder
Optical (pentaprism)
Optical (pentaprism)
White balance presets
12
6
Screen size
3"
3.2"
Screen resolution
920,000 dots
1,040,000 dots
Video capture
Max. video resolution
Storage types
Compact Flash (Type I or II) x 2, UDMA
Compact Flash (Type I or II), UDMA compatible
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Lithium-Ion EN-EL4a rechargeable battery
Lithium-Ion LP-E4N rechargeable battery
Weight
1260 g
Dimensions
160 x 157 x 88 mm
158 x 164 x 83 mm
Year
2008
2011




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Diagonal

Diagonal is calculated by the use of Pythagorean theorem:
Diagonal =  w² + h²
where w = sensor width and h = sensor height

Nikon D3X diagonal

w = 35.90 mm
h = 24.00 mm
Diagonal =  35.90² + 24.00²   = 43.18 mm

Canon -1D X diagonal

w = 36.00 mm
h = 24.00 mm
Diagonal =  36.00² + 24.00²   = 43.27 mm


Surface area

Surface area is calculated by multiplying the width and the height of a sensor.

D3X sensor area

Width = 35.90 mm
Height = 24.00 mm

Surface area = 35.90 × 24.00 = 861.60 mm²

-1D X sensor area

Width = 36.00 mm
Height = 24.00 mm

Surface area = 36.00 × 24.00 = 864.00 mm²


Pixel pitch

Pixel pitch is the distance from the center of one pixel to the center of the next measured in micrometers (µm). It can be calculated with the following formula:
Pixel pitch =   sensor width in mm  × 1000
sensor resolution width in pixels

D3X pixel pitch

Sensor width = 35.90 mm
Sensor resolution width = 6062 pixels
Pixel pitch =   35.90  × 1000  = 5.92 µm
6062

-1D X pixel pitch

Sensor width = 36.00 mm
Sensor resolution width = 5211 pixels
Pixel pitch =   36.00  × 1000  = 6.91 µm
5211


Pixel area

The area of one pixel can be calculated by simply squaring the pixel pitch:
Pixel area = pixel pitch²

You could also divide sensor surface area with effective megapixels:
Pixel area =   sensor surface area in mm²
effective megapixels

D3X pixel area

Pixel pitch = 5.92 µm

Pixel area = 5.92² = 35.05 µm²

-1D X pixel area

Pixel pitch = 6.91 µm

Pixel area = 6.91² = 47.75 µm²


Pixel density

Pixel density can be calculated with the following formula:
Pixel density =  ( sensor resolution width in pixels )² / 1000000
sensor width in cm

One could also use this formula:
Pixel density =   effective megapixels × 1000000  / 10000
sensor surface area in mm²

D3X pixel density

Sensor resolution width = 6062 pixels
Sensor width = 3.59 cm

Pixel density = (6062 / 3.59)² / 1000000 = 2.85 MP/cm²

-1D X pixel density

Sensor resolution width = 5211 pixels
Sensor width = 3.6 cm

Pixel density = (5211 / 3.6)² / 1000000 = 2.1 MP/cm²


Sensor resolution

Sensor resolution is calculated from sensor size and effective megapixels. It's slightly higher than maximum (not interpolated) image resolution which is usually stated on camera specifications. Sensor resolution is used in pixel pitch, pixel area, and pixel density formula. For sake of simplicity, we're going to calculate it in 3 stages.

1. First we need to find the ratio between horizontal and vertical length by dividing the former with the latter (aspect ratio). It's usually 1.33 (4:3) or 1.5 (3:2), but not always.

2. With the ratio (r) known we can calculate the X from the formula below, where X is a vertical number of pixels:
(X × r) × X = effective megapixels × 1000000    →   
X =  effective megapixels × 1000000
r
3. To get sensor resolution we then multiply X with the corresponding ratio:

Resolution horizontal: X × r
Resolution vertical: X

D3X sensor resolution

Sensor width = 35.90 mm
Sensor height = 24.00 mm
Effective megapixels = 24.50
r = 35.90/24.00 = 1.5
X =  24.50 × 1000000  = 4041
1.5
Resolution horizontal: X × r = 4041 × 1.5 = 6062
Resolution vertical: X = 4041

Sensor resolution = 6062 x 4041

-1D X sensor resolution

Sensor width = 36.00 mm
Sensor height = 24.00 mm
Effective megapixels = 18.10
r = 36.00/24.00 = 1.5
X =  18.10 × 1000000  = 3474
1.5
Resolution horizontal: X × r = 3474 × 1.5 = 5211
Resolution vertical: X = 3474

Sensor resolution = 5211 x 3474


Crop factor

Crop factor or focal length multiplier is calculated by dividing the diagonal of 35 mm film (43.27 mm) with the diagonal of the sensor.
Crop factor =   43.27 mm
sensor diagonal in mm


D3X crop factor

Sensor diagonal in mm = 43.18 mm
Crop factor =   43.27  = 1
43.18

-1D X crop factor

Sensor diagonal in mm = 43.27 mm
Crop factor =   43.27  = 1
43.27

35 mm equivalent aperture

Equivalent aperture (in 135 film terms) is calculated by multiplying lens aperture with crop factor (a.k.a. focal length multiplier).

D3X equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Nikon D3X, take the aperture of the lens you're using and multiply it with crop factor.

Since crop factor for Nikon D3X is 1, the equivalent aperture is aperture.

-1D X equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Canon -1D X, take the aperture of the lens you're using and multiply it with crop factor.

Since crop factor for Canon -1D X is 1, the equivalent aperture is aperture.

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