Leica D-Lux 8 vs. Canon PowerShot G7 X Mark III

Comparison

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D-Lux 8 image
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PowerShot G7 X Mark III image
Leica D-Lux 8 Canon PowerShot G7 X Mark III
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Megapixels
17.00
20.10
Max. image resolution
4736 x 3552
5472 x 3648

Sensor

Sensor type
CMOS
CMOS
Sensor size
Four Thirds (17.3 x 13 mm)
13.2 x 8.8 mm
Sensor resolution
4755 x 3575
5492 x 3661
Diagonal
21.64 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
1.94 : 1
(ratio)
Leica D-Lux 8 Canon PowerShot G7 X Mark III
Surface area:
224.90 mm² vs 116.16 mm²
Difference: 108.74 mm² (94%)
D-Lux 8 sensor is approx. 1.94x bigger than G7 X Mark III sensor.
Note: You are comparing cameras of different generations. There is a 5 year gap between Leica D-Lux 8 (2024) and Canon G7 X Mark III (2019). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
3.64 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: 1.24 µm (52%)
Pixel pitch of D-Lux 8 is approx. 52% higher than pixel pitch of G7 X Mark III.
Pixel area
13.25 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: 7.49 µm² (130%)
A pixel on Leica D-Lux 8 sensor is approx. 130% bigger than a pixel on Canon G7 X Mark III.
Pixel density
7.55 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: 9.76 µm (129%)
Canon G7 X Mark III has approx. 129% higher pixel density than Leica D-Lux 8.
To learn about the accuracy of these numbers, click here.



Specs

Leica D-Lux 8
Canon G7 X Mark III
Crop factor
2
2.73
Total megapixels
21.77
20.90
Effective megapixels
17.00
20.10
Optical zoom
3.1x
4.2x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 200-25600 (extends to 100)
Auto, 125-12800 (extends to 25600)
RAW
Manual focus
Normal focus range
50 cm
5 cm
Macro focus range
3 cm
Focal length (35mm equiv.)
24 - 75 mm
24 - 100 mm
Aperture priority
Yes
Yes
Max. aperture
f1.7 - f2.8
f1.8 - f2.8
Max. aperture (35mm equiv.)
f3.4 - f5.6
f4.9 - f7.6
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±3 EV (in 1/3 EV steps)
±3 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
60 sec
30 sec
Max. shutter speed
1/16000 sec
1/2000 sec
Built-in flash
External flash
Viewfinder
Electronic
None
White balance presets
5
6
Screen size
3"
3"
Screen resolution
1,843,200 dots
1,040,000 dots
Video capture
Max. video resolution
3840x2160 (30p/24p)
3840x2160 (30p/​25p)
Storage types
SD/SDHC/SDXC (UHS-II)
SD/SDHC/SDXC
USB
USB 3.0 (5 GBit/sec)
USB 3.0 (5 GBit/sec)
HDMI
Wireless
GPS
Battery
BP-DC15 Lithium-Ion battery
NB-13L lithium-ion battery
Weight
397 g
304 g
Dimensions
130 x 69 x 62 mm
105.5 x 60.9 x 41.4 mm
Year
2024
2019




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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 8 diagonal

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

Canon G7 X Mark III 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.

D-Lux 8 sensor area

Width = 17.30 mm
Height = 13.00 mm

Surface area = 17.30 × 13.00 = 224.90 mm²

G7 X Mark III 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

D-Lux 8 pixel pitch

Sensor width = 17.30 mm
Sensor resolution width = 4755 pixels
Pixel pitch =   17.30  × 1000  = 3.64 µm
4755

G7 X Mark III 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

D-Lux 8 pixel area

Pixel pitch = 3.64 µm

Pixel area = 3.64² = 13.25 µm²

G7 X Mark III 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

D-Lux 8 pixel density

Sensor resolution width = 4755 pixels
Sensor width = 1.73 cm

Pixel density = (4755 / 1.73)² / 1000000 = 7.55 MP/cm²

G7 X Mark III 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

D-Lux 8 sensor resolution

Sensor width = 17.30 mm
Sensor height = 13.00 mm
Effective megapixels = 17.00
r = 17.30/13.00 = 1.33
X =  17.00 × 1000000  = 3575
1.33
Resolution horizontal: X × r = 3575 × 1.33 = 4755
Resolution vertical: X = 3575

Sensor resolution = 4755 x 3575

G7 X Mark III 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


D-Lux 8 crop factor

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

G7 X Mark III 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).

D-Lux 8 equivalent aperture

Crop factor = 2
Aperture = f1.7 - f2.8

35-mm equivalent aperture = (f1.7 - f2.8) × 2 = f3.4 - f5.6

G7 X Mark III equivalent aperture

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

35-mm equivalent aperture = (f1.8 - f2.8) × 2.73 = f4.9 - f7.6

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