Sony Cyber-shot DSC-W1 vs. Panasonic Lumix DMC-LX10

Comparison

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Cyber-shot DSC-W1 image
vs
Lumix DMC-LX10 image
Sony Cyber-shot DSC-W1 Panasonic Lumix DMC-LX10
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Megapixels
5.10
20.10
Max. image resolution
2592 x 1944
5472 x 3648

Sensor

Sensor type
CCD
CMOS
Sensor size
1/1.8" (~ 7.11 x 5.33 mm)
13.2 x 8.8 mm
Sensor resolution
2604 x 1958
5492 x 3661
Diagonal
8.89 mm
15.86 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 : 3.06
(ratio)
Sony Cyber-shot DSC-W1 Panasonic Lumix DMC-LX10
Surface area:
37.90 mm² vs 116.16 mm²
Difference: 78.26 mm² (206%)
LX10 sensor is approx. 3.06x bigger than W1 sensor.
Note: You are comparing sensors of vastly different generations. There is a gap of 12 years between Sony W1 (2004) and Panasonic LX10 (2016). Twelve years is a huge amount of time, technology wise, resulting in newer sensor being much more efficient than the older one.
Pixel pitch
2.73 µm
2.4 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: 0.33 µm (14%)
Pixel pitch of W1 is approx. 14% higher than pixel pitch of LX10.
Pixel area
7.45 µm²
5.76 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: 1.69 µm² (29%)
A pixel on Sony W1 sensor is approx. 29% bigger than a pixel on Panasonic LX10.
Pixel density
13.41 MP/cm²
17.31 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: 3.9 µm (29%)
Panasonic LX10 has approx. 29% higher pixel density than Sony W1.
To learn about the accuracy of these numbers, click here.



Specs

Sony W1
Panasonic LX10
Crop factor
4.87
2.73
Total megapixels
20.90
Effective megapixels
20.10
Optical zoom
3x
3x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 100, 200, 400
Auto, 125-12800 (extends to 80-25600)
RAW
Manual focus
Normal focus range
50 cm
30 cm
Macro focus range
6 cm
3 cm
Focal length (35mm equiv.)
38 - 114 mm
24 - 72 mm
Aperture priority
No
Yes
Max. aperture
f2.8 - f5.6
f1.4 - f2.8
Max. aperture (35mm equiv.)
f13.6 - f27.3
f3.8 - f7.6
Metering
Multi Spot, Spot
Multi, Center-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
30 sec
60 sec
Max. shutter speed
1/2000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Optical (tunnel)
None
White balance presets
5
5
Screen size
2.5"
3"
Screen resolution
123,000 dots
1,040,000 dots
Video capture
Max. video resolution
3840x2160 (30p/24p)
Storage types
Memory Stick, Memory Stick Pro
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
AA (2) batteries (NiMH rechargables included)
Lithium-ion battery
Weight
189 g
310 g
Dimensions
91 x 60 x 31 mm
105.5 x 60 x 42 mm
Year
2004
2016




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vs

Diagonal

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

Sony W1 diagonal

The diagonal of W1 sensor is not 1/1.8 or 0.56" (14.1 mm) as you might expect, but approximately two thirds of that value - 8.89 mm. If you want to know why, see sensor sizes.

w = 7.11 mm
h = 5.33 mm
Diagonal =  7.11² + 5.33²   = 8.89 mm

Panasonic LX10 diagonal

w = 13.20 mm
h = 8.80 mm
Diagonal =  13.20² + 8.80²   = 15.86 mm


Surface area

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

W1 sensor area

Width = 7.11 mm
Height = 5.33 mm

Surface area = 7.11 × 5.33 = 37.90 mm²

LX10 sensor area

Width = 13.20 mm
Height = 8.80 mm

Surface area = 13.20 × 8.80 = 116.16 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

W1 pixel pitch

Sensor width = 7.11 mm
Sensor resolution width = 2604 pixels
Pixel pitch =   7.11  × 1000  = 2.73 µm
2604

LX10 pixel pitch

Sensor width = 13.20 mm
Sensor resolution width = 5492 pixels
Pixel pitch =   13.20  × 1000  = 2.4 µm
5492


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

W1 pixel area

Pixel pitch = 2.73 µm

Pixel area = 2.73² = 7.45 µm²

LX10 pixel area

Pixel pitch = 2.4 µm

Pixel area = 2.4² = 5.76 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

W1 pixel density

Sensor resolution width = 2604 pixels
Sensor width = 0.711 cm

Pixel density = (2604 / 0.711)² / 1000000 = 13.41 MP/cm²

LX10 pixel density

Sensor resolution width = 5492 pixels
Sensor width = 1.32 cm

Pixel density = (5492 / 1.32)² / 1000000 = 17.31 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

W1 sensor resolution

Sensor width = 7.11 mm
Sensor height = 5.33 mm
Effective megapixels = 5.10
r = 7.11/5.33 = 1.33
X =  5.10 × 1000000  = 1958
1.33
Resolution horizontal: X × r = 1958 × 1.33 = 2604
Resolution vertical: X = 1958

Sensor resolution = 2604 x 1958

LX10 sensor resolution

Sensor width = 13.20 mm
Sensor height = 8.80 mm
Effective megapixels = 20.10
r = 13.20/8.80 = 1.5
X =  20.10 × 1000000  = 3661
1.5
Resolution horizontal: X × r = 3661 × 1.5 = 5492
Resolution vertical: X = 3661

Sensor resolution = 5492 x 3661


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


W1 crop factor

Sensor diagonal in mm = 8.89 mm
Crop factor =   43.27  = 4.87
8.89

LX10 crop factor

Sensor diagonal in mm = 15.86 mm
Crop factor =   43.27  = 2.73
15.86

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).

W1 equivalent aperture

Crop factor = 4.87
Aperture = f2.8 - f5.6

35-mm equivalent aperture = (f2.8 - f5.6) × 4.87 = f13.6 - f27.3

LX10 equivalent aperture

Crop factor = 2.73
Aperture = f1.4 - f2.8

35-mm equivalent aperture = (f1.4 - f2.8) × 2.73 = f3.8 - f7.6

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