Sony Alpha a9 vs. Leica M10 (Typ 3656)
Comparison
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| Sony Alpha a9 | Leica M10 (Typ 3656) | ||||
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Megapixels
24.20
24.00
Max. image resolution
6000 x 4000
5952 x 3968
Sensor
Sensor type
CMOS
CMOS
Sensor size
35.6 x 23.8 mm
36 x 24 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 »
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 »
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| Sony Alpha a9 | Leica M10 (Typ 3656) | |
Surface area:
| 847.28 mm² | vs | 864.00 mm² |
Difference: 16.72 mm² (2%)
M10 (Typ 3656) sensor is slightly bigger than Alpha a9 sensor (only 2% difference).
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.
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.
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.
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: 1.07 µm² (3%)
A pixel on Leica M10 (Typ 3656) sensor is approx. 3% bigger than a pixel on Sony Alpha a9.
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.
Higher pixel density means smaller pixels and lower pixel density means larger pixels.
To learn about the accuracy of these numbers,
click here.
Specs
Sony Alpha a9
Leica M10 (Typ 3656)
Total megapixels
28.30
Effective megapixels
24.20
24.00
Optical zoom
Digital zoom
Yes
No
ISO sensitivity
Auto, 100-51200 (expandable to 50-204800)
Auto, 100-50000
RAW
Manual focus
Normal focus range
Macro focus range
Focal length (35mm equiv.)
Aperture priority
Yes
Yes
Max. aperture
Metering
Multi, Center-weighted, Highlight-weighted, Spot, Average
Multi, Center-weighted, Spot
Exposure compensation
±5 EV (in 1/3 EV, 1/2 EV steps)
±3 EV (in 1/3 EV steps)
Shutter priority
Yes
Yes
Min. shutter speed
30 sec
125 sec
Max. shutter speed
1/8000 sec
1/4000 sec
Built-in flash
External flash
Viewfinder
Electronic
Optical (rangefinder)
White balance presets
10
8
Screen size
3"
3"
Screen resolution
1,440,000 dots
1,036,800 dots
Video capture
Max. video resolution
3840x2160 (30p/25p/24p)
Storage types
SD/SDHC/SDXC/MS PRO Duo
SD/SDHC/SDXC
USB
USB 2.0 (480 Mbit/sec)
HDMI
Wireless
GPS
Battery
NP-FZ100 lithium-ion battery
Lithium-ion rechargeable battery
Weight
673 g
660 g
Dimensions
126.9 x 95.6 x 63 mm
139 x 38.5 x 80 mm
Year
2017
2017
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Diagonal
Diagonal is calculated by the use of Pythagorean theorem:
where w = sensor width and h = sensor height
| Diagonal = √ | w² + h² |
Sony Alpha a9 diagonal
w = 35.60 mm
h = 23.80 mm
h = 23.80 mm
| Diagonal = √ | 35.60² + 23.80² | = 42.82 mm |
Leica M10 (Typ 3656) diagonal
w = 36.00 mm
h = 24.00 mm
h = 24.00 mm
| Diagonal = √ | 36.00² + 24.00² | = 43.27 mm |
Surface area
Surface area is calculated by multiplying the width and the height of a sensor.
Alpha a9 sensor area
Width = 35.60 mm
Height = 23.80 mm
Surface area = 35.60 × 23.80 = 847.28 mm²
Height = 23.80 mm
Surface area = 35.60 × 23.80 = 847.28 mm²
M10 (Typ 3656) sensor area
Width = 36.00 mm
Height = 24.00 mm
Surface area = 36.00 × 24.00 = 864.00 mm²
Height = 24.00 mm
Surface area = 36.00 × 24.00 = 864.00 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 |
Alpha a9 pixel pitch
Sensor width = 35.60 mm
Sensor resolution width = 6026 pixels
Sensor resolution width = 6026 pixels
| Pixel pitch = | 35.60 | × 1000 | = 5.91 µm |
| 6026 |
M10 (Typ 3656) pixel pitch
Sensor width = 36.00 mm
Sensor resolution width = 6000 pixels
Sensor resolution width = 6000 pixels
| Pixel pitch = | 36.00 | × 1000 | = 6 µm |
| 6000 |
Pixel area
The area of one pixel can be calculated by simply squaring the pixel pitch:
You could also divide sensor surface area with effective megapixels:
Pixel area = pixel pitch²
You could also divide sensor surface area with effective megapixels:
| Pixel area = | sensor surface area in mm² |
| effective megapixels |
Alpha a9 pixel area
Pixel pitch = 5.91 µm
Pixel area = 5.91² = 34.93 µm²
Pixel area = 5.91² = 34.93 µm²
M10 (Typ 3656) pixel area
Pixel pitch = 6 µm
Pixel area = 6² = 36 µm²
Pixel area = 6² = 36 µm²
Pixel density
Pixel density can be calculated with the following formula:
One could also use this 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 |
Alpha a9 pixel density
Sensor resolution width = 6026 pixels
Sensor width = 3.56 cm
Pixel density = (6026 / 3.56)² / 1000000 = 2.87 MP/cm²
Sensor width = 3.56 cm
Pixel density = (6026 / 3.56)² / 1000000 = 2.87 MP/cm²
M10 (Typ 3656) pixel density
Sensor resolution width = 6000 pixels
Sensor width = 3.6 cm
Pixel density = (6000 / 3.6)² / 1000000 = 2.78 MP/cm²
Sensor width = 3.6 cm
Pixel density = (6000 / 3.6)² / 1000000 = 2.78 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:
3. To get sensor resolution we then multiply X with the corresponding ratio:
Resolution horizontal: X × r
Resolution vertical: X
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 → |
|
Resolution horizontal: X × r
Resolution vertical: X
Alpha a9 sensor resolution
Sensor width = 35.60 mm
Sensor height = 23.80 mm
Effective megapixels = 24.20
Resolution horizontal: X × r = 4017 × 1.5 = 6026
Resolution vertical: X = 4017
Sensor resolution = 6026 x 4017
Sensor height = 23.80 mm
Effective megapixels = 24.20
| r = 35.60/23.80 = 1.5 |
|
Resolution vertical: X = 4017
Sensor resolution = 6026 x 4017
M10 (Typ 3656) sensor resolution
Sensor width = 36.00 mm
Sensor height = 24.00 mm
Effective megapixels = 24.00
Resolution horizontal: X × r = 4000 × 1.5 = 6000
Resolution vertical: X = 4000
Sensor resolution = 6000 x 4000
Sensor height = 24.00 mm
Effective megapixels = 24.00
| r = 36.00/24.00 = 1.5 |
|
Resolution vertical: X = 4000
Sensor resolution = 6000 x 4000
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 |
Alpha a9 crop factor
Sensor diagonal in mm = 42.82 mm
| Crop factor = | 43.27 | = 1.01 |
| 42.82 |
M10 (Typ 3656) crop factor
Sensor diagonal in mm = 43.27 mm
| Crop factor = | 43.27 | = 1 |
| 43.27 |
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).
Alpha a9 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 Alpha a9, take the aperture of the lens
you're using and multiply it with crop factor.
Crop factor for Sony Alpha a9 is 1.01
Crop factor for Sony Alpha a9 is 1.01
M10 (Typ 3656) 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 M10 (Typ 3656), take the aperture of the lens
you're using and multiply it with crop factor.
Since crop factor for Leica M10 (Typ 3656) is 1, the equivalent aperture is aperture.
Since crop factor for Leica M10 (Typ 3656) is 1, the equivalent aperture is aperture.
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