Sigma DP3 Merrill vs. Fujifilm X20
Comparison
| change cameras » | |||||
|
vs |
|
|||
| Sigma DP3 Merrill | Fujifilm X20 | ||||
| check price » | check price » | ||||
Megapixels
15.40
12.00
Max. image resolution
4000 x 3000
Note: Sigma DP3 Merrill uses 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
CMOS
Sensor size
24 x 16 mm
2/3" (~ 8.8 x 6.6 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 »
|
|
vs |
|
| 6.61 | : | 1 |
| (ratio) | ||
| Sigma DP3 Merrill | Fujifilm X20 | |
Surface area:
| 384.00 mm² | vs | 58.08 mm² |
Difference: 325.92 mm² (561%)
DP3 Merrill sensor is approx. 6.61x bigger than X20 sensor.
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: 20.06 µm² (414%)
A pixel on Sigma DP3 Merrill sensor is approx. 414% bigger than a pixel on Fujifilm X20.
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 DP3 Merrill
Fujifilm X20
Total megapixels
15.40
Effective megapixels
15.40
12.00
Optical zoom
1x
4x
Digital zoom
Yes
ISO sensitivity
100-6400
Auto, 100, 200, 250, 320, 400, 500, 640, 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000, 5000, 6400, 12800
RAW
Manual focus
Normal focus range
50 cm
Macro focus range
1 cm
Focal length (35mm equiv.)
75 mm
28 - 112 mm
Aperture priority
Yes
Max. aperture
f2.8
f2.0 - f2.8
Metering
Multi, Average, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
Shutter priority
Yes
Min. shutter speed
30 sec
Max. shutter speed
1/4000 sec
Built-in flash
External flash
Viewfinder
None
Optical (tunnel)
White balance presets
7
Screen size
3"
2.8"
Screen resolution
920,000 dots
460,000 dots
Video capture
Max. video resolution
1920x1080 (60p)
Storage types
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Lithium-Ion NP-50 rechargeable battery
Weight
330 g
353 g
Dimensions
122 x 67 x 59 mm
117 x 69.6 x 56.8 mm
Year
2013
2013
Choose cameras to compare
Popular comparisons:
- Sigma DP3 Merrill vs. Sigma DP2 Merrill
- Sigma DP3 Merrill vs. Fujifilm FinePix X100
- Sigma DP3 Merrill vs. Fujifilm X-E1
- Sigma DP3 Merrill vs. Nikon D800E
- Sigma DP3 Merrill vs. Leica X2
- Sigma DP3 Merrill vs. Nikon D800
- Sigma DP3 Merrill vs. Sigma DP1 Merrill
- Sigma DP3 Merrill vs. Fujifilm X100S
- Sigma DP3 Merrill vs. Canon EOS 5D Mark III
- Sigma DP3 Merrill vs. Leica D-Lux 6
- Sigma DP3 Merrill vs. Sony Alpha NEX-6
Diagonal
Diagonal is calculated by the use of Pythagorean theorem:
where w = sensor width and h = sensor height
| Diagonal = √ | w² + h² |
Sigma DP3 Merrill diagonal
w = 24.00 mm
h = 16.00 mm
h = 16.00 mm
| Diagonal = √ | 24.00² + 16.00² | = 28.84 mm |
Fujifilm X20 diagonal
The diagonal of X20 sensor is not 2/3 or 0.67" (16.9 mm) as you might expect, but approximately two thirds of
that value - 11 mm. If you want to know why, see
sensor sizes.
w = 8.80 mm
h = 6.60 mm
w = 8.80 mm
h = 6.60 mm
| Diagonal = √ | 8.80² + 6.60² | = 11.00 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
DP3 Merrill 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
X20 sensor area
Width = 8.80 mm
Height = 6.60 mm
Surface area = 8.80 × 6.60 = 58.08 mm²
Height = 6.60 mm
Surface area = 8.80 × 6.60 = 58.08 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 |
DP3 Merrill 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 |
X20 pixel pitch
Sensor width = 8.80 mm
Sensor resolution width = 3995 pixels
Sensor resolution width = 3995 pixels
| Pixel pitch = | 8.80 | × 1000 | = 2.2 µm |
| 3995 |
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 |
DP3 Merrill pixel area
Pixel pitch = 4.99 µm
Pixel area = 4.99² = 24.9 µm²
Pixel area = 4.99² = 24.9 µm²
X20 pixel area
Pixel pitch = 2.2 µm
Pixel area = 2.2² = 4.84 µm²
Pixel area = 2.2² = 4.84 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 |
DP3 Merrill 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
X20 pixel density
Sensor resolution width = 3995 pixels
Sensor width = 0.88 cm
Pixel density = (3995 / 0.88)² / 1000000 = 20.61 MP/cm²
Sensor width = 0.88 cm
Pixel density = (3995 / 0.88)² / 1000000 = 20.61 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
DP3 Merrill 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
X20 sensor resolution
Sensor width = 8.80 mm
Sensor height = 6.60 mm
Effective megapixels = 12.00
Resolution horizontal: X × r = 3004 × 1.33 = 3995
Resolution vertical: X = 3004
Sensor resolution = 3995 x 3004
Sensor height = 6.60 mm
Effective megapixels = 12.00
| r = 8.80/6.60 = 1.33 |
|
Resolution vertical: X = 3004
Sensor resolution = 3995 x 3004
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 |
DP3 Merrill crop factor
Sensor diagonal in mm = 28.84 mm
| Crop factor = | 43.27 | = 1.5 |
| 28.84 |
X20 crop factor
Sensor diagonal in mm = 11.00 mm
| Crop factor = | 43.27 | = 3.93 |
| 11.00 |
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).
DP3 Merrill equivalent aperture
Crop factor = 1.5
Aperture = f2.8
35-mm equivalent aperture = (f2.8) × 1.5 = f4.2
Aperture = f2.8
35-mm equivalent aperture = (f2.8) × 1.5 = f4.2
X20 equivalent aperture
Crop factor = 3.93
Aperture = f2.0 - f2.8
35-mm equivalent aperture = (f2.0 - f2.8) × 3.93 = f7.9 - f11
Aperture = f2.0 - f2.8
35-mm equivalent aperture = (f2.0 - f2.8) × 3.93 = f7.9 - f11
More comparisons of Sigma DP3 Merrill:
- Sigma DP3 Merrill vs. Fujifilm X20
- Sigma DP3 Merrill vs. Nikon D5200
- Sigma DP3 Merrill vs. Leica M9 Titanium
- Sigma DP3 Merrill vs. Leica S2
- Sigma DP3 Merrill vs. Sigma SD1 Merrill
- Sigma DP3 Merrill vs. Canon EOS 60D
- Sigma DP3 Merrill vs. Sony Cyber-shot DSC-RX1
- Sigma DP3 Merrill vs. Sony Alpha NEX-5
- Sigma DP3 Merrill vs. Nikon D5100
- Sigma DP3 Merrill vs. Ricoh GR
Enter your screen size (diagonal)
My screen size is
inches
Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a sensor won't be shown correctly.