Leica Q2 vs. Sony Cyber-shot DSC-RX1R II

Comparison

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Q2 image
vs
Cyber-shot DSC-RX1R II image
Leica Q2 Sony Cyber-shot DSC-RX1R II
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Megapixels
47.30
42.40
Max. image resolution
8368 x 5584
7952 x 5304

Sensor

Sensor type
CMOS
CMOS
Sensor size
36 x 24 mm
35.9 x 24 mm
Sensor resolution
8423 x 5615
7976 x 5317
Diagonal
43.27 mm
43.18 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 : 1
(ratio)
Leica Q2 Sony Cyber-shot DSC-RX1R II
Surface area:
864.00 mm² vs 861.60 mm²
Difference: 2.4 mm² (0.3%)
Q2 sensor is slightly bigger than RX1R II sensor (only 0.3% difference).
Note: You are comparing cameras of different generations. There is a 4 year gap between Leica Q2 (2019) and Sony RX1R II (2015). All things being equal, newer sensor generations generally outperform the older.
Pixel pitch
4.27 µm
4.5 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: 0.23 µm (5%)
Pixel pitch of RX1R II is approx. 5% higher than pixel pitch of Q2.
Pixel area
18.23 µm²
20.25 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: 2.02 µm² (11%)
A pixel on Sony RX1R II sensor is approx. 11% bigger than a pixel on Leica Q2.
Pixel density
5.47 MP/cm²
4.94 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: 0.53 µm (11%)
Leica Q2 has approx. 11% higher pixel density than Sony RX1R II.
To learn about the accuracy of these numbers, click here.



Specs

Leica Q2
Sony RX1R II
Crop factor
1
1
Total megapixels
50.40
43.60
Effective megapixels
47.30
42.40
Optical zoom
1x
1x
Digital zoom
Yes
Yes
ISO sensitivity
Auto, 50-50000
Auto, 100-25600 (expandable to 50-102400)
RAW
Manual focus
Normal focus range
30 cm
24 cm
Macro focus range
17 cm
14 cm
Focal length (35mm equiv.)
28 mm
35 mm
Aperture priority
Yes
Yes
Max. aperture
f1.7
f2
Max. aperture (35mm equiv.)
f1.7
f2
Metering
Multi, Center-weighted, Spot
Multi, Center-weighted, Spot
Exposure compensation
±3 EV (in 1/3 EV steps)
±5 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
60 sec
30 sec
Max. shutter speed
1/40000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Electronic
Electronic
White balance presets
5
9
Screen size
3"
3"
Screen resolution
1,040,000 dots
1,228,800 dots
Video capture
Max. video resolution
4096x2160 (24p)
1920x1080 (60p/60i/50p/30p/24p)
Storage types
SD/SDHC/SDXC
SD/SDHC/SDXC, MS Duo, MS PRO Duo
USB
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
BP-SCL4 Lithium-ion battery
Rechargeable Battery Pack NP-BX1
Weight
734 g
507 g
Dimensions
130 x 80 x 91.9 mm
113.3 x 65.4 x 72.0 mm
Year
2019
2015




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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 Q2 diagonal

w = 36.00 mm
h = 24.00 mm
Diagonal =  36.00² + 24.00²   = 43.27 mm

Sony RX1R II diagonal

w = 35.90 mm
h = 24.00 mm
Diagonal =  35.90² + 24.00²   = 43.18 mm


Surface area

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

Q2 sensor area

Width = 36.00 mm
Height = 24.00 mm

Surface area = 36.00 × 24.00 = 864.00 mm²

RX1R II sensor area

Width = 35.90 mm
Height = 24.00 mm

Surface area = 35.90 × 24.00 = 861.60 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

Q2 pixel pitch

Sensor width = 36.00 mm
Sensor resolution width = 8423 pixels
Pixel pitch =   36.00  × 1000  = 4.27 µm
8423

RX1R II pixel pitch

Sensor width = 35.90 mm
Sensor resolution width = 7976 pixels
Pixel pitch =   35.90  × 1000  = 4.5 µm
7976


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

Q2 pixel area

Pixel pitch = 4.27 µm

Pixel area = 4.27² = 18.23 µm²

RX1R II pixel area

Pixel pitch = 4.5 µm

Pixel area = 4.5² = 20.25 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

Q2 pixel density

Sensor resolution width = 8423 pixels
Sensor width = 3.6 cm

Pixel density = (8423 / 3.6)² / 1000000 = 5.47 MP/cm²

RX1R II pixel density

Sensor resolution width = 7976 pixels
Sensor width = 3.59 cm

Pixel density = (7976 / 3.59)² / 1000000 = 4.94 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

Q2 sensor resolution

Sensor width = 36.00 mm
Sensor height = 24.00 mm
Effective megapixels = 47.30
r = 36.00/24.00 = 1.5
X =  47.30 × 1000000  = 5615
1.5
Resolution horizontal: X × r = 5615 × 1.5 = 8423
Resolution vertical: X = 5615

Sensor resolution = 8423 x 5615

RX1R II sensor resolution

Sensor width = 35.90 mm
Sensor height = 24.00 mm
Effective megapixels = 42.40
r = 35.90/24.00 = 1.5
X =  42.40 × 1000000  = 5317
1.5
Resolution horizontal: X × r = 5317 × 1.5 = 7976
Resolution vertical: X = 5317

Sensor resolution = 7976 x 5317


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


Q2 crop factor

Sensor diagonal in mm = 43.27 mm
Crop factor =   43.27  = 1
43.27

RX1R II crop factor

Sensor diagonal in mm = 43.18 mm
Crop factor =   43.27  = 1
43.18

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).

Q2 equivalent aperture

Crop factor = 1
Aperture = f1.7

35-mm equivalent aperture = (f1.7) × 1 = f1.7

RX1R II equivalent aperture

Crop factor = 1
Aperture = f2

35-mm equivalent aperture = (f2) × 1 = f2

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