Sigma SD1 vs. Sigma SD10
Comparison
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| Sigma SD1 | Sigma SD10 | ||||
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Megapixels
15.40
3.40
Max. image resolution
4800 x 3200 x 3
2268 x 1512 x 3
Note: Both Sigma SD1 and Sigma SD10 use Foveon X3 image sensor, which is a new type of sensor that
has 3 layers of photoelements stacked together in 1 pixel location. Traditional
CCD/CMOS sensors have 1 pixel for 1 color, whereas Foveon sensor captures all
3 colors (blue, green, and red) at every pixel.
Sensor
Sensor type
Foveon
Foveon
Sensor size
24 x 16 mm
20.7 x 13.8 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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| 1.34 | : | 1 |
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| Sigma SD1 | Sigma SD10 | |
Surface area:
| 384.00 mm² | vs | 285.66 mm² |
Difference: 98.34 mm² (34%)
SD1 sensor is approx. 1.34x bigger than SD10 sensor.
Note: You are comparing sensors of very different generations.
There is a gap of 7 years between Sigma SD1 (2010) and Sigma SD10 (2003).
Seven years is a lot of time in terms
of technology, meaning newer sensors are overall much more
efficient than the older ones.
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: 59.01 µm² (237%)
A pixel on Sigma SD10 sensor is approx. 237% bigger than a pixel on Sigma SD1.
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
Sigma SD1
Sigma SD10
Total megapixels
15.40
3.40
Effective megapixels
15.40
3.40
Optical zoom
Digital zoom
No
ISO sensitivity
Auto
100, 200, 400, 800, 1600
RAW
Manual focus
Normal focus range
Macro focus range
Focal length (35mm equiv.)
Aperture priority
Yes
Yes
Max. aperture
Metering
Multi, Center-weighted, Average
Centre weighted, Evaluative
Exposure compensation
±3 EV (in 1/3 EV steps)
±3 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
15 sec
30 sec
Max. shutter speed
1/2000 sec
1/6000 sec
Built-in flash
External flash
Viewfinder
Optical (pentaprism)
Optical (pentaprism)
White balance presets
6
8
Screen size
3"
1.8"
Screen resolution
460,000 dots
130,000 dots
Video capture
Max. video resolution
Storage types
Compact Flash (Type I, UDMA compatible)
CompactFlash type I, CompactFlash type II, Microdrive
USB
USB 2.0 (480 Mbit/sec)
USB 1.0
HDMI
Wireless
GPS
Battery
Lithium-Ion rechargeable battery
Lithium-Ion rechargeable battery
Weight
280 g
950 g
Dimensions
145.5 x 112.5 x 80.0 mm
152 x 120 x 79 mm
Year
2010
2003
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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 |
Sigma SD1 diagonal
w = 24.00 mm
h = 16.00 mm
h = 16.00 mm
| Diagonal = √ | 24.00² + 16.00² | = 28.84 mm |
Sigma SD10 diagonal
w = 20.70 mm
h = 13.80 mm
h = 13.80 mm
| Diagonal = √ | 20.70² + 13.80² | = 24.88 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
SD1 sensor area
Width = 24.00 mm
Height = 16.00 mm
Surface area = 24.00 × 16.00 = 384.00 mm²
Height = 16.00 mm
Surface area = 24.00 × 16.00 = 384.00 mm²
SD10 sensor area
Width = 20.70 mm
Height = 13.80 mm
Surface area = 20.70 × 13.80 = 285.66 mm²
Height = 13.80 mm
Surface area = 20.70 × 13.80 = 285.66 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 |
SD1 pixel pitch
Sensor width = 24.00 mm
Sensor resolution width = 4806 pixels
Sensor resolution width = 4806 pixels
| Pixel pitch = | 24.00 | × 1000 | = 4.99 µm |
| 4806 |
SD10 pixel pitch
Sensor width = 20.70 mm
Sensor resolution width = 2259 pixels
Sensor resolution width = 2259 pixels
| Pixel pitch = | 20.70 | × 1000 | = 9.16 µm |
| 2259 |
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 |
SD1 pixel area
Pixel pitch = 4.99 µm
Pixel area = 4.99² = 24.9 µm²
Pixel area = 4.99² = 24.9 µm²
SD10 pixel area
Pixel pitch = 9.16 µm
Pixel area = 9.16² = 83.91 µm²
Pixel area = 9.16² = 83.91 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 |
SD1 pixel density
Sensor resolution width = 4806 pixels
Sensor width = 2.4 cm
Pixel density = (4806 / 2.4)² / 1000000 = 4.01 MP/cm²
Sensor width = 2.4 cm
Pixel density = (4806 / 2.4)² / 1000000 = 4.01 MP/cm²
SD10 pixel density
Sensor resolution width = 2259 pixels
Sensor width = 2.07 cm
Pixel density = (2259 / 2.07)² / 1000000 = 1.19 MP/cm²
Sensor width = 2.07 cm
Pixel density = (2259 / 2.07)² / 1000000 = 1.19 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 → |
|
Resolution horizontal: X × r
Resolution vertical: X
SD1 sensor resolution
Sensor width = 24.00 mm
Sensor height = 16.00 mm
Effective megapixels = 15.40
Resolution horizontal: X × r = 3204 × 1.5 = 4806
Resolution vertical: X = 3204
Sensor resolution = 4806 x 3204
Sensor height = 16.00 mm
Effective megapixels = 15.40
| r = 24.00/16.00 = 1.5 |
|
Resolution vertical: X = 3204
Sensor resolution = 4806 x 3204
SD10 sensor resolution
Sensor width = 20.70 mm
Sensor height = 13.80 mm
Effective megapixels = 3.40
Resolution horizontal: X × r = 1506 × 1.5 = 2259
Resolution vertical: X = 1506
Sensor resolution = 2259 x 1506
Sensor height = 13.80 mm
Effective megapixels = 3.40
| r = 20.70/13.80 = 1.5 |
|
Resolution vertical: X = 1506
Sensor resolution = 2259 x 1506
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 |
SD1 crop factor
Sensor diagonal in mm = 28.84 mm
| Crop factor = | 43.27 | = 1.5 |
| 28.84 |
SD10 crop factor
Sensor diagonal in mm = 24.88 mm
| Crop factor = | 43.27 | = 1.74 |
| 24.88 |
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).
SD1 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
Sigma SD1, take the aperture of the lens
you're using and multiply it with crop factor.
Crop factor for Sigma SD1 is 1.5
Crop factor for Sigma SD1 is 1.5
SD10 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
Sigma SD10, take the aperture of the lens
you're using and multiply it with crop factor.
Crop factor for Sigma SD10 is 1.74
Crop factor for Sigma SD10 is 1.74
More comparisons of Sigma SD1:
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