Leica D-LUX vs. Panasonic Lumix DMC-L1

Comparison

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D-LUX image
vs
Lumix DMC-L1 image
Leica D-LUX Panasonic Lumix DMC-L1
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Megapixels
3.20
7.40
Max. image resolution
2048 x 1536
3136 x 2352

Sensor

Sensor type
CCD
CMOS
Sensor size
1/2.5" (~ 5.75 x 4.32 mm)
Four Thirds (17.3 x 13 mm)
Sensor resolution
2063 x 1551
3137 x 2359
Diagonal
7.19 mm
21.64 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

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vs
1 : 9.05
(ratio)
Leica D-LUX Panasonic Lumix DMC-L1
Surface area:
24.84 mm² vs 224.90 mm²
Difference: 200.06 mm² (805%)
L1 sensor is approx. 9.05x bigger than D-LUX sensor.
Note: You are comparing cameras of different generations. There is a 3 year gap between Leica D-LUX (2003) and Panasonic L1 (2006). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
2.79 µm
5.51 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: 2.72 µm (97%)
Pixel pitch of L1 is approx. 97% higher than pixel pitch of D-LUX.
Pixel area
7.78 µm²
30.36 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: 22.58 µm² (290%)
A pixel on Panasonic L1 sensor is approx. 290% bigger than a pixel on Leica D-LUX.
Pixel density
12.87 MP/cm²
3.29 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: 9.58 µm (291%)
Leica D-LUX has approx. 291% higher pixel density than Panasonic L1.
To learn about the accuracy of these numbers, click here.



Specs

Leica D-LUX
Panasonic L1
Crop factor
6.02
2
Total megapixels
7.90
Effective megapixels
7.40
Optical zoom
Yes
Digital zoom
Yes
Yes
ISO sensitivity
50, 100, 200, 400
Auto, 100, 200, 400, 800, 1600
RAW
Manual focus
Normal focus range
10 cm
Macro focus range
Focal length (35mm equiv.)
35 - 105 mm
Aperture priority
No
Yes
Max. aperture
f2.8 - f4.9
Max. aperture (35mm equiv.)
f16.9 - f29.5
n/a
Metering
Centre weighted, Matrix, Spot
Multi, Center-weighted, Spot
Exposure compensation
±2 EV (in 1/3 EV steps)
±2 EV (in 1/3 EV steps)
Shutter priority
No
Yes
Min. shutter speed
8 sec
60 sec
Max. shutter speed
1/2000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Optical
Optical (pentamirror)
White balance presets
7
4
Screen size
1.5"
2.5"
Screen resolution
114,000 dots
207,000 dots
Video capture
Max. video resolution
Storage types
MultiMedia, Secure Digital
SD/MMC card
USB
USB 2.0 (480 Mbit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
Li-Ion
Lithium-Ion rechargeable
Weight
204 g
606 g
Dimensions
121 x 52 x 34 mm
146 x 87 x 77 mm
Year
2003
2006




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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

Leica D-LUX diagonal

The diagonal of D-LUX 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
Diagonal =  5.75² + 4.32²   = 7.19 mm

Panasonic L1 diagonal

w = 17.30 mm
h = 13.00 mm
Diagonal =  17.30² + 13.00²   = 21.64 mm


Surface area

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

D-LUX sensor area

Width = 5.75 mm
Height = 4.32 mm

Surface area = 5.75 × 4.32 = 24.84 mm²

L1 sensor area

Width = 17.30 mm
Height = 13.00 mm

Surface area = 17.30 × 13.00 = 224.90 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

D-LUX pixel pitch

Sensor width = 5.75 mm
Sensor resolution width = 2063 pixels
Pixel pitch =   5.75  × 1000  = 2.79 µm
2063

L1 pixel pitch

Sensor width = 17.30 mm
Sensor resolution width = 3137 pixels
Pixel pitch =   17.30  × 1000  = 5.51 µm
3137


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

D-LUX pixel area

Pixel pitch = 2.79 µm

Pixel area = 2.79² = 7.78 µm²

L1 pixel area

Pixel pitch = 5.51 µm

Pixel area = 5.51² = 30.36 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

D-LUX pixel density

Sensor resolution width = 2063 pixels
Sensor width = 0.575 cm

Pixel density = (2063 / 0.575)² / 1000000 = 12.87 MP/cm²

L1 pixel density

Sensor resolution width = 3137 pixels
Sensor width = 1.73 cm

Pixel density = (3137 / 1.73)² / 1000000 = 3.29 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

D-LUX sensor resolution

Sensor width = 5.75 mm
Sensor height = 4.32 mm
Effective megapixels = 3.20
r = 5.75/4.32 = 1.33
X =  3.20 × 1000000  = 1551
1.33
Resolution horizontal: X × r = 1551 × 1.33 = 2063
Resolution vertical: X = 1551

Sensor resolution = 2063 x 1551

L1 sensor resolution

Sensor width = 17.30 mm
Sensor height = 13.00 mm
Effective megapixels = 7.40
r = 17.30/13.00 = 1.33
X =  7.40 × 1000000  = 2359
1.33
Resolution horizontal: X × r = 2359 × 1.33 = 3137
Resolution vertical: X = 2359

Sensor resolution = 3137 x 2359


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


D-LUX crop factor

Sensor diagonal in mm = 7.19 mm
Crop factor =   43.27  = 6.02
7.19

L1 crop factor

Sensor diagonal in mm = 21.64 mm
Crop factor =   43.27  = 2
21.64

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).

D-LUX equivalent aperture

Crop factor = 6.02
Aperture = f2.8 - f4.9

35-mm equivalent aperture = (f2.8 - f4.9) × 6.02 = f16.9 - f29.5

L1 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 Panasonic L1, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Panasonic L1 is 2

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