Kodak EasyShare C140 vs. Nikon D40x
Comparison
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Kodak EasyShare C140 | Nikon D40x | ||||
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Megapixels
8.20
10.20
Max. image resolution
3264 x 2448
3872 x 2592
Sensor
Sensor type
CCD
CCD
Sensor size
1/2.5" (~ 5.75 x 4.32 mm)
23.6 x 15.8 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 »
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 »
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Kodak EasyShare C140 | Nikon D40x |
Surface area:
24.84 mm² | vs | 372.88 mm² |
Difference: 348.04 mm² (1401%)
D40x sensor is approx. 15.01x bigger than C140 sensor.
Note: You are comparing cameras of different generations.
There is a 2 year gap between Kodak C140 (2009) and Nikon D40x (2007).
All things being equal, newer sensor generations generally outperform the older.
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.
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.
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.
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: 33.57 µm² (1108%)
A pixel on Nikon D40x sensor is approx. 1108% bigger than a pixel on Kodak C140.
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.
Higher pixel density means smaller pixels and lower pixel density means larger pixels.
To learn about the accuracy of these numbers,
click here.
Specs
Kodak C140
Nikon D40x
Total megapixels
8.30
10.75
Effective megapixels
8.20
10.20
Optical zoom
3x
Digital zoom
Yes
No
ISO sensitivity
Auto, 80, 100, 200, 400, 800, 1000
Auto, 100 - 1600 (plus 3200 with boost)
RAW
Manual focus
Normal focus range
60 cm
Macro focus range
13 cm
Focal length (35mm equiv.)
36 - 108 mm
Aperture priority
No
Yes
Max. aperture
f2.7 - f4.8
Metering
Centre weighted, Multi-pattern, Spot
3D Matrix metering II, Centre weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±5 EV (in 1/3 EV steps)
Shutter priority
No
Yes
Min. shutter speed
4 sec
30 sec
Max. shutter speed
1/1400 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
None
Optical (pentamirror)
White balance presets
5
6
Screen size
2.4"
2.5"
Screen resolution
112,000 dots
230,000 dots
Video capture
Max. video resolution
Storage types
SDHC, Secure Digital
SDHC, Secure Digital
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
AA (2) NiMH Rechargeable batteries
Nikon EN-EL9 Lithium-Ion included
Weight
130 g
522 g
Dimensions
91.4 x 62.4 x 21.9 mm
126 x 64 x 94 mm
Year
2009
2007
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Diagonal
Diagonal is calculated by the use of Pythagorean theorem:
where w = sensor width and h = sensor height
Diagonal = √ | w² + h² |
Kodak C140 diagonal
The diagonal of C140 sensor is not 1/2.5 or 0.4" (10.2 mm) as you might expect, but approximately two thirds of
that value - 7.19 mm. If you want to know why, see
sensor sizes.
w = 5.75 mm
h = 4.32 mm
w = 5.75 mm
h = 4.32 mm
Diagonal = √ | 5.75² + 4.32² | = 7.19 mm |
Nikon D40x diagonal
w = 23.60 mm
h = 15.80 mm
h = 15.80 mm
Diagonal = √ | 23.60² + 15.80² | = 28.40 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
C140 sensor area
Width = 5.75 mm
Height = 4.32 mm
Surface area = 5.75 × 4.32 = 24.84 mm²
Height = 4.32 mm
Surface area = 5.75 × 4.32 = 24.84 mm²
D40x sensor area
Width = 23.60 mm
Height = 15.80 mm
Surface area = 23.60 × 15.80 = 372.88 mm²
Height = 15.80 mm
Surface area = 23.60 × 15.80 = 372.88 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 |
C140 pixel pitch
Sensor width = 5.75 mm
Sensor resolution width = 3302 pixels
Sensor resolution width = 3302 pixels
Pixel pitch = | 5.75 | × 1000 | = 1.74 µm |
3302 |
D40x pixel pitch
Sensor width = 23.60 mm
Sensor resolution width = 3898 pixels
Sensor resolution width = 3898 pixels
Pixel pitch = | 23.60 | × 1000 | = 6.05 µm |
3898 |
Pixel area
The area of one pixel can be calculated by simply squaring the pixel pitch:
You could also divide sensor surface area with effective megapixels:
Pixel area = pixel pitch²
You could also divide sensor surface area with effective megapixels:
Pixel area = | sensor surface area in mm² |
effective megapixels |
C140 pixel area
Pixel pitch = 1.74 µm
Pixel area = 1.74² = 3.03 µm²
Pixel area = 1.74² = 3.03 µm²
D40x pixel area
Pixel pitch = 6.05 µm
Pixel area = 6.05² = 36.6 µm²
Pixel area = 6.05² = 36.6 µm²
Pixel density
Pixel density can be calculated with the following formula:
One could also use this 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 |
C140 pixel density
Sensor resolution width = 3302 pixels
Sensor width = 0.575 cm
Pixel density = (3302 / 0.575)² / 1000000 = 32.98 MP/cm²
Sensor width = 0.575 cm
Pixel density = (3302 / 0.575)² / 1000000 = 32.98 MP/cm²
D40x pixel density
Sensor resolution width = 3898 pixels
Sensor width = 2.36 cm
Pixel density = (3898 / 2.36)² / 1000000 = 2.73 MP/cm²
Sensor width = 2.36 cm
Pixel density = (3898 / 2.36)² / 1000000 = 2.73 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:
3. To get sensor resolution we then multiply X with the corresponding ratio:
Resolution horizontal: X × r
Resolution vertical: X
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 → |
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Resolution horizontal: X × r
Resolution vertical: X
C140 sensor resolution
Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 8.20
Resolution horizontal: X × r = 2483 × 1.33 = 3302
Resolution vertical: X = 2483
Sensor resolution = 3302 x 2483
Sensor height = 4.32 mm
Effective megapixels = 8.20
r = 5.75/4.32 = 1.33 |
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Resolution vertical: X = 2483
Sensor resolution = 3302 x 2483
D40x sensor resolution
Sensor width = 23.60 mm
Sensor height = 15.80 mm
Effective megapixels = 10.20
Resolution horizontal: X × r = 2616 × 1.49 = 3898
Resolution vertical: X = 2616
Sensor resolution = 3898 x 2616
Sensor height = 15.80 mm
Effective megapixels = 10.20
r = 23.60/15.80 = 1.49 |
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Resolution vertical: X = 2616
Sensor resolution = 3898 x 2616
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 |
C140 crop factor
Sensor diagonal in mm = 7.19 mm
Crop factor = | 43.27 | = 6.02 |
7.19 |
D40x crop factor
Sensor diagonal in mm = 28.40 mm
Crop factor = | 43.27 | = 1.52 |
28.40 |
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).
C140 equivalent aperture
Crop factor = 6.02
Aperture = f2.7 - f4.8
35-mm equivalent aperture = (f2.7 - f4.8) × 6.02 = f16.3 - f28.9
Aperture = f2.7 - f4.8
35-mm equivalent aperture = (f2.7 - f4.8) × 6.02 = f16.3 - f28.9
D40x 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 D40x, take the aperture of the lens
you're using and multiply it with crop factor.
Crop factor for Nikon D40x is 1.52
Crop factor for Nikon D40x is 1.52
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