Sony a7C vs. Leica M8

Comparison

change cameras »
a7C image
vs
M8 image
Sony a7C Leica M8
check price » check price »
Megapixels
24.20
10.30
Max. image resolution
6000 x 4000
3936 x 2630

Sensor

Sensor type
CMOS
CCD
Sensor size
35.6 x 23.8 mm
27 x 18 mm
Sensor resolution
6026 x 4017
3930 x 2620
Diagonal
42.82 mm
32.45 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
1.74 : 1
(ratio)
Sony a7C Leica M8
Surface area:
847.28 mm² vs 486.00 mm²
Difference: 361.28 mm² (74%)
a7C sensor is approx. 1.74x bigger than M8 sensor.
Note: You are comparing sensors of vastly different generations. There is a gap of 14 years between Sony a7C (2020) and Leica M8 (2006). Fourteen years is a huge amount of time, technology wise, resulting in newer sensor being much more efficient than the older one.
Pixel pitch
5.91 µm
6.87 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: 0.96 µm (16%)
Pixel pitch of M8 is approx. 16% higher than pixel pitch of a7C.
Pixel area
34.93 µm²
47.2 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: 12.27 µm² (35%)
A pixel on Leica M8 sensor is approx. 35% bigger than a pixel on Sony a7C.
Pixel density
2.87 MP/cm²
2.12 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: 0.75 µm (35%)
Sony a7C has approx. 35% higher pixel density than Leica M8.
To learn about the accuracy of these numbers, click here.



Specs

Sony a7C
Leica M8
Crop factor
1.01
1.33
Total megapixels
25.30
10.30
Effective megapixels
24.20
10.30
Optical zoom
Digital zoom
Yes
No
ISO sensitivity
Auto, 100-51200 (extends to 50-204800)
160, 320, 640, 1250, 2500
RAW
Manual focus
Normal focus range
Macro focus range
Focal length (35mm equiv.)
Aperture priority
Yes
Yes
Max. aperture
Max. aperture (35mm equiv.)
n/a
n/a
Metering
Multi, Center-weighted, Highlight-weighted, Average, Spot
Centre weighted, Multi-segment, Spot
Exposure compensation
±5 EV (in 1/3 EV, 1/2 EV steps)
±3 EV (in 1/3 EV steps)
Shutter priority
Yes
No
Min. shutter speed
30 sec
8 sec
Max. shutter speed
1/4000 sec
1/8000 sec
Built-in flash
External flash
Viewfinder
Electronic
Optical (rangefinder)
White balance presets
7
6
Screen size
3"
2.5"
Screen resolution
921,600 dots
230,000 dots
Video capture
Max. video resolution
3840x2160 (30p/​25p/​24p)
Storage types
SD/SDHC/SDXC/MS Pro Duo
Secure Digital
USB
USB 3.0 (5 GBit/sec)
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
NP-FZ100 lithium-ion battery
Lithium-Ion rechargeable
Weight
509 g
591 g
Dimensions
124 x 71.1 x 59.7 mm
139 x 80 x 37 mm
Year
2020
2006




Choose cameras to compare

vs

Diagonal

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

Sony a7C diagonal

w = 35.60 mm
h = 23.80 mm
Diagonal =  35.60² + 23.80²   = 42.82 mm

Leica M8 diagonal

w = 27.00 mm
h = 18.00 mm
Diagonal =  27.00² + 18.00²   = 32.45 mm


Surface area

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

a7C sensor area

Width = 35.60 mm
Height = 23.80 mm

Surface area = 35.60 × 23.80 = 847.28 mm²

M8 sensor area

Width = 27.00 mm
Height = 18.00 mm

Surface area = 27.00 × 18.00 = 486.00 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

a7C pixel pitch

Sensor width = 35.60 mm
Sensor resolution width = 6026 pixels
Pixel pitch =   35.60  × 1000  = 5.91 µm
6026

M8 pixel pitch

Sensor width = 27.00 mm
Sensor resolution width = 3930 pixels
Pixel pitch =   27.00  × 1000  = 6.87 µm
3930


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

a7C pixel area

Pixel pitch = 5.91 µm

Pixel area = 5.91² = 34.93 µm²

M8 pixel area

Pixel pitch = 6.87 µm

Pixel area = 6.87² = 47.2 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

a7C pixel density

Sensor resolution width = 6026 pixels
Sensor width = 3.56 cm

Pixel density = (6026 / 3.56)² / 1000000 = 2.87 MP/cm²

M8 pixel density

Sensor resolution width = 3930 pixels
Sensor width = 2.7 cm

Pixel density = (3930 / 2.7)² / 1000000 = 2.12 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

a7C sensor resolution

Sensor width = 35.60 mm
Sensor height = 23.80 mm
Effective megapixels = 24.20
r = 35.60/23.80 = 1.5
X =  24.20 × 1000000  = 4017
1.5
Resolution horizontal: X × r = 4017 × 1.5 = 6026
Resolution vertical: X = 4017

Sensor resolution = 6026 x 4017

M8 sensor resolution

Sensor width = 27.00 mm
Sensor height = 18.00 mm
Effective megapixels = 10.30
r = 27.00/18.00 = 1.5
X =  10.30 × 1000000  = 2620
1.5
Resolution horizontal: X × r = 2620 × 1.5 = 3930
Resolution vertical: X = 2620

Sensor resolution = 3930 x 2620


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


a7C crop factor

Sensor diagonal in mm = 42.82 mm
Crop factor =   43.27  = 1.01
42.82

M8 crop factor

Sensor diagonal in mm = 32.45 mm
Crop factor =   43.27  = 1.33
32.45

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).

a7C 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 Sony a7C, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Sony a7C is 1.01

M8 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 Leica M8, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Leica M8 is 1.33

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.